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good afternoon and welcome to nasa

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headquarters i'm dwane brown with the

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office of communications today's

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briefing is about nasa's lunar

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atmosphere and dust environment explorer

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or lati a robotic mission was launched

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about two weeks away where the

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spacecraft will orbit the moon to help

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scientists answer prevailing questions

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about our moon

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and this mission has many firsts

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in which you will hear firsthand about

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today

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of course for more details

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about the mission and updates on launch

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please visit nasa's website at

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laddie

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and join the conversation on twitter at

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nasaladdy

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and during our question and answer

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period please social media

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join and bring in your questions for the

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scientists to answer at hashtag ask nasa

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and of course the conversation is

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brewing and a lot is going on follow

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nasa and

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missions updates on social media on

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twitter facebook

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and other sites

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before i introduce today's panelists

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today

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to start us off with opening remarks

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please welcome

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the associate administrator for nasa's

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science mission directorate john

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thank you duane

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i love this mission

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uh laddie is going to be fantastic i'm

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getting really excited as we move to the

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launch pad

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first of all because it's going to the

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moon

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and

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ever since i was a young boy you know

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like so many folks you know looking up

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at the sky i've wondered about the moon

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with the lunar reconnaissance orbiter

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which is still in orbit around the moon

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we've learned an enormous amount about

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the surface of the moon

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with grail we've studied the interior of

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the moon and now with lady we're going

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to learn about the moon's atmosphere

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which is something very mysterious and

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we know very little bit about

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and so this is a particularly exciting

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mission for us

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the other reason i love it is it

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launches from wallops and duane was

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talking about the first and you're going

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to hear a lot more about all of these

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things

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i think are great

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and another is that it has a laser com

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demo and this is something i'm a huge

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fan of

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and finally it's a modular spacecraft

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so that while this is the the lunar

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version

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it's a type of architecture that we

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might be able to use in a lot of

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different

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types of science experiments and others

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so i'm very excited uh you'll hear a lot

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more about it please bring your

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questions

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thank you john so let's get to our

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panelists they will have brief

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presentations but let me introduce them

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to you

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first

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joan salute

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lady program executive

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butler hine

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lady project manager from nasa's ames

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sarah noble

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don cornwell mission manager for the

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lunar laser communications demonstration

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at nasa's goddard space flight center in

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and doug voss the launch manager at

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wallops and with that i'll toss it to

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you john thank you duane thank you for

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coming this afternoon to learn more

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about lady ladies scheduled to launch on

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friday september 6 which is just two

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short weeks from tomorrow from the

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eastern shore of virginia at the wallops

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flight facility

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lady is sponsored by the science mission

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directorate and will have three

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scientific instruments to measure the

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atmosphere and the dust as john

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mentioned

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in addition it has the what we call the

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tech demo or tech demonstration which is

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the loser excuse me lunar laser optical

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communications demonstration this tech

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demo is sponsored by the human

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exploration operations missions

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directorate

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once in orbit laddie will orbit the moon

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in a lunar or

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equatorial orbit to measure what the

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atmosphere is made up of and how that

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varies over time it will also try to

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understand whether or not the dust is

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levitated from the surface and this is

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one of the mysteries that you'll hear

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about in a minute

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before you hear the details of the

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mission from all of the fellow panelists

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i'd like to try to put into perspective

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the mission development for this project

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in 2008 we formulated a new program the

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lunar quest program which was designed

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specifically

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to accelerate lunar exploration lunar

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scientific exploration

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we wanted to do it before humans went

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at this time the science mission

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directorate was trying to figure out how

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to make spacecraft less expensive

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and ames had come up with what we're

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calling the reusable modular design

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they thought they could do it less

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expensively than we've done in the past

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so the mission was directed to aims with

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a low-cost commitment

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now five years later we're actually

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ready to go five years after the program

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started we're ready to go back to the

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moon

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from the beginning this has been a great

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partnership across nasa we augmented the

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aims team with goddard both greenbelt

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and wallops

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goddard has a wealth of expertise that

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was able to supplement the aims team

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the program office we went to marshall

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space flight center where we already had

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our discovery and new frontiers program

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office well established

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during the years of development we've

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added team members from kennedy in

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florida glenn in ohio

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jpl in california

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langley and virginia and johnson space

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center in texas where the team needed

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additional expertise they reached out

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the mission was directed to aims for

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overall project management and they have

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designed built integrated and tested the

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spacecraft they'll be responsible for

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all the mission operations during the

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mission

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nasa greenbelt goddard greenbelt was

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responsible for developing the payload

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which included all three scientific

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instruments and the tech demo

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and they'll be responsible to run the

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science operations center during the

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mission

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nasa wallops has the privilege to launch

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us into space they have all the launch

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vehicle services and the range

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operations

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we have a reimbursable agreement with

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the air force to supply the launch

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vehicle and they're responsible for the

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mission assurance of the launch vehicle

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we're very proud to be breaking new

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ground in a number of areas this

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includes the first time ames has built a

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spacecraft in-house without the help of

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a prime contractor

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it's the first deep space mission to be

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launched from wallops

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the first minotaur or

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four or five to be launched from wallops

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and it's the maiden voyage of the

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minotaur five anywhere

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and as was mentioned it's nasa's first

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test from space of the optical

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communications we're especially excited

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about

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so now i'd like to ask butler the

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project manager from ames to go over

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some mission highlights

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uh thanks joan

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um

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one of the things that is the first is

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we're trying out a modular spacecraft

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bus that is not designed for a single

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mission it's designed in a modular

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fashion so you can use it for for

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different missions by combining it in

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different ways if you bring up my first

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slide you can see

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the

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architecture

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you can see the individual modules

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there's a top module which contains most

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the

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located on opposite sides for balance it

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also has our reaction wheels for fine

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pointing control

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there's an extension module and within

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that is the propulsion module you can uh

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put different types of propulsion

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modules in this spacecraft architecture

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but in this case uh we're using a proven

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commercial design from space systems

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laurel that is a byprop system uh

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meaning uh it has two fuel tanks and two

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pressure uh two oxidizer tanks and its

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pressurized system

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some things to notice about this

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spacecraft design is it does not have

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the wings that you normally see on a lot

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of modern designs those wings give you a

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lot of power they're deployed after

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launch

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but

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they they require that you always point

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at the sun because it's very it's very

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uh bad for a spacecraft to lose power

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obviously so you always want to be

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pointing at the sun one of the

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characteristics of this design that you

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can see is that it has solar panels all

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over the spacecraft what that means is

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the spacecraft can be in pretty much any

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attitude and still generate power that

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means it's a very inherently safe design

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it's very difficult for this spacecraft

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to ever get in a condition that it can't

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wake up from

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if you go to the next slide what you'll

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see is this is what lady looks like

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right now

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when we put the spacecraft together uh

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in this modular fashion it was done in a

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way to lower the cost of production one

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of the characteristics is this uh carbon

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composite frame uh that the spacecraft

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is built up to be very strong and very

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lightweight

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the other things we other thing we did

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was take advantage of any modern

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electronics any modern

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devices that were designed for space

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rather than designing things from

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scratch so this is a think of it as a

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a bus that you can use for a multitude

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purposes i'm very happy that we got the

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chance to fly this on the first time uh

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for a lunar mission because uh that

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really proves out some of the

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characteristics of the bus after we put

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the bus together we went through a lot

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of testing uh you really want a

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spacecraft to experience the rigors of

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space before you fly it so we shook it

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we blasted it with loud noises we

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simulated the

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shock when it separates from the launch

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vehicle we put it in a hard vacuum

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chamber we baked it to high temperatures

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cooled it to very low temperatures uh

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tested all of its communications

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equipment with the actual uh relay

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satellites that we're going to be using

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we did all this in preparation shipping

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it to the range

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it's been at the range this summer we

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just finished doing all the spin

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00:10:36,630 --> 00:10:35,120
balancing all the fueling of the

288
00:10:38,870 --> 00:10:36,640
spacecraft

289
00:10:41,509 --> 00:10:38,880
and now it's encapsulated with the fifth

290
00:10:43,509 --> 00:10:41,519
stage the upper stage it's encapsulated

291
00:10:45,590 --> 00:10:43,519
in the nose cone of the rocket this

292
00:10:46,790 --> 00:10:45,600
weekend we plan to roll it out and stack

293
00:10:49,350 --> 00:10:46,800
it on the rest of the launch vehicle

294
00:10:51,350 --> 00:10:49,360
which is already stacked at the pad if

295
00:10:53,670 --> 00:10:51,360
you go to the last animation you can see

296
00:10:55,990 --> 00:10:53,680
what it looks like in flight this is a

297
00:10:57,990 --> 00:10:56,000
an animation showing what you would see

298
00:11:00,310 --> 00:10:58,000
if you were outside the spacecraft

299
00:11:01,590 --> 00:11:00,320
looking at it on the way to the moon

300
00:11:03,190 --> 00:11:01,600
there's a couple of interesting things

301
00:11:04,870 --> 00:11:03,200
about how we get to the moon if you're

302
00:11:06,230 --> 00:11:04,880
if you're my generation you remember the

303
00:11:07,990 --> 00:11:06,240
apollo era

304
00:11:09,670 --> 00:11:08,000
they got to the moon in a classic figure

305
00:11:11,670 --> 00:11:09,680
eight pattern it's a very efficient way

306
00:11:15,509 --> 00:11:11,680
of getting to the moon uh it takes a lot

307
00:11:17,350 --> 00:11:15,519
of fuel however and because of of

308
00:11:18,949 --> 00:11:17,360
trying to optimize the amount of fuel

309
00:11:20,870 --> 00:11:18,959
that we have for the science mission we

310
00:11:23,509 --> 00:11:20,880
go in a different way we we launch from

311
00:11:25,350 --> 00:11:23,519
wallops and then we go into these

312
00:11:27,190 --> 00:11:25,360
elliptic orbits around the earth we take

313
00:11:29,430 --> 00:11:27,200
a couple of passes around the earth and

314
00:11:31,430 --> 00:11:29,440
each pass we get higher and higher until

315
00:11:32,949 --> 00:11:31,440
finally on the third pass we're hanging

316
00:11:36,069 --> 00:11:32,959
out there in space right around where

317
00:11:38,069 --> 00:11:36,079
the moon's going to come by it swings by

318
00:11:40,550 --> 00:11:38,079
whips us around behind it and then once

319
00:11:42,389 --> 00:11:40,560
we come out from behind the moon we do a

320
00:11:44,230 --> 00:11:42,399
big breaking burn with our main engine

321
00:11:46,550 --> 00:11:44,240
that you can see there that breaking

322
00:11:48,949 --> 00:11:46,560
burn is what captures us around the moon

323
00:11:50,790 --> 00:11:48,959
we spend about 30 days commissioning the

324
00:11:53,509 --> 00:11:50,800
science instruments

325
00:11:54,710 --> 00:11:53,519
we do the optical com experiment during

326
00:11:56,310 --> 00:11:54,720
that time

327
00:11:58,310 --> 00:11:56,320
and then we drop down into the low

328
00:12:01,430 --> 00:11:58,320
science orbit the low science orbits

329
00:12:03,350 --> 00:12:01,440
about 30 to 70 to 90 miles above the

330
00:12:05,110 --> 00:12:03,360
lunar surface it's very low and when

331
00:12:07,350 --> 00:12:05,120
you're that low above the moon the lumpy

332
00:12:10,230 --> 00:12:07,360
gravity field requires a lot of fuel to

333
00:12:12,069 --> 00:12:10,240
maintain so we drop down into that orbit

334
00:12:14,470 --> 00:12:12,079
do our active science where we're flying

335
00:12:16,710 --> 00:12:14,480
in and out of the light dark terminators

336
00:12:18,389 --> 00:12:16,720
around the moon and and then at the end

337
00:12:20,949 --> 00:12:18,399
of the mission we terminate the mission

338
00:12:22,870 --> 00:12:20,959
by intentionally crashing into the the

339
00:12:25,030 --> 00:12:22,880
lunar surface taking science on the way

340
00:12:26,790 --> 00:12:25,040
down and now i'd like sarah to talk

341
00:12:28,470 --> 00:12:26,800
about the the science aspects of the

342
00:12:30,230 --> 00:12:28,480
mission thanks butler

343
00:12:31,990 --> 00:12:30,240
so as you've heard lady has two main

344
00:12:33,590 --> 00:12:32,000
science goals to understand the lunar

345
00:12:35,590 --> 00:12:33,600
atmosphere as well as the dust

346
00:12:36,949 --> 00:12:35,600
environment around the moon and i think

347
00:12:38,389 --> 00:12:36,959
sometimes people are a little taken

348
00:12:40,310 --> 00:12:38,399
aback when we start talking about the

349
00:12:41,750 --> 00:12:40,320
lunar atmosphere because right we were

350
00:12:43,350 --> 00:12:41,760
told in school that the moon doesn't

351
00:12:45,509 --> 00:12:43,360
have an atmosphere

352
00:12:47,590 --> 00:12:45,519
it does it's just it's really really

353
00:12:49,269 --> 00:12:47,600
thin it's so thin that the individual

354
00:12:51,190 --> 00:12:49,279
molecules that make up the atmosphere

355
00:12:52,470 --> 00:12:51,200
are so few and far between that they

356
00:12:54,230 --> 00:12:52,480
don't interact with each other they

357
00:12:55,910 --> 00:12:54,240
never collide a collisionless

358
00:12:57,910 --> 00:12:55,920
environment which is something we call

359
00:12:58,949 --> 00:12:57,920
an exosphere if i can get my first

360
00:13:00,790 --> 00:12:58,959
graphic

361
00:13:02,069 --> 00:13:00,800
the earth actually has an exosphere as

362
00:13:03,430 --> 00:13:02,079
well but you actually have to get out

363
00:13:05,110 --> 00:13:03,440
past where the international space

364
00:13:06,550 --> 00:13:05,120
station orbits before you get to this

365
00:13:08,870 --> 00:13:06,560
condition that we can consider an

366
00:13:10,790 --> 00:13:08,880
exosphere on the moon that actually

367
00:13:12,870 --> 00:13:10,800
happens right at the surface so the term

368
00:13:15,350 --> 00:13:12,880
we use for this class of atmosphere is a

369
00:13:16,870 --> 00:13:15,360
surface boundary exosphere and it's not

370
00:13:18,470 --> 00:13:16,880
just the moon surface boundary

371
00:13:20,069 --> 00:13:18,480
exospheres turn out to be the most

372
00:13:22,790 --> 00:13:20,079
common type of atmosphere we have in the

373
00:13:24,949 --> 00:13:22,800
solar system so mercury a lot of the

374
00:13:27,030 --> 00:13:24,959
moons of other planets even some large

375
00:13:28,949 --> 00:13:27,040
asteroids are big enough to have a

376
00:13:30,230 --> 00:13:28,959
surface boundary exosphere

377
00:13:31,990 --> 00:13:30,240
and it's a class of atmosphere we

378
00:13:33,350 --> 00:13:32,000
actually don't know that much about so

379
00:13:35,110 --> 00:13:33,360
it turns out the moon is actually a

380
00:13:36,389 --> 00:13:35,120
really convenient place to go and learn

381
00:13:37,829 --> 00:13:36,399
about this really common type of

382
00:13:39,670 --> 00:13:37,839
atmosphere

383
00:13:41,750 --> 00:13:39,680
it's also a really good time for us to

384
00:13:44,629 --> 00:13:41,760
go and explore the lunar ecosphere

385
00:13:46,310 --> 00:13:44,639
because it's so delicate and thin

386
00:13:48,710 --> 00:13:46,320
it's easily disturbed by things like

387
00:13:50,310 --> 00:13:48,720
spacecraft landings

388
00:13:51,590 --> 00:13:50,320
things have been relatively quiet around

389
00:13:53,269 --> 00:13:51,600
the moon in terms of landings for the

390
00:13:54,470 --> 00:13:53,279
last few decades but that's not going to

391
00:13:56,150 --> 00:13:54,480
it's not going to stay that way for long

392
00:13:57,430 --> 00:13:56,160
there's actually a number of countries a

393
00:13:58,790 --> 00:13:57,440
number of private companies that are

394
00:14:00,230 --> 00:13:58,800
planning landings to the moon in the

395
00:14:01,910 --> 00:14:00,240
upcoming years so now is a really good

396
00:14:03,350 --> 00:14:01,920
time to go and take a look at it while

397
00:14:05,590 --> 00:14:03,360
it's still in its sort of pristine

398
00:14:07,430 --> 00:14:05,600
natural state

399
00:14:08,870 --> 00:14:07,440
the second science goal is to look at

400
00:14:12,150 --> 00:14:08,880
the dust environment around the room and

401
00:14:13,829 --> 00:14:12,160
if i can get the the second graphic

402
00:14:15,269 --> 00:14:13,839
we've actually had questions about the

403
00:14:17,350 --> 00:14:15,279
dust environment

404
00:14:18,629 --> 00:14:17,360
since even before apollo if you look at

405
00:14:21,030 --> 00:14:18,639
the image on the left here from the

406
00:14:22,710 --> 00:14:21,040
surveyor 7 mission it captured something

407
00:14:25,189 --> 00:14:22,720
right along the horizon just before

408
00:14:27,509 --> 00:14:25,199
sunrise this strange glow that we think

409
00:14:29,189 --> 00:14:27,519
might be due to dust scattering sunlight

410
00:14:30,870 --> 00:14:29,199
in the atmosphere

411
00:14:32,790 --> 00:14:30,880
the apollo astronauts actually saw

412
00:14:35,430 --> 00:14:32,800
something similar thing too if you can

413
00:14:37,350 --> 00:14:35,440
see on the right side is a sketch from

414
00:14:38,790 --> 00:14:37,360
from apollo 17 astronaut gene cernan's

415
00:14:40,629 --> 00:14:38,800
notebook where he saw not just that

416
00:14:42,069 --> 00:14:40,639
horizon glow but also these things he

417
00:14:44,790 --> 00:14:42,079
saw streaming high up into the

418
00:14:46,470 --> 00:14:44,800
atmosphere something he called streamers

419
00:14:48,150 --> 00:14:46,480
we think this also might be due to very

420
00:14:50,470 --> 00:14:48,160
tiny particles of dust getting lofted

421
00:14:52,790 --> 00:14:50,480
tens of kilometers up into the sky

422
00:14:54,310 --> 00:14:52,800
so this is uh finally an opportunity to

423
00:14:55,670 --> 00:14:54,320
that we can go and solve this mystery

424
00:14:57,910 --> 00:14:55,680
that has been puzzling scientists for

425
00:14:59,350 --> 00:14:57,920
almost 50 years so we're very excited to

426
00:15:00,710 --> 00:14:59,360
finally get an

427
00:15:01,910 --> 00:15:00,720
opportunity to understand what the dust

428
00:15:02,949 --> 00:15:01,920
environment is going to be like around

429
00:15:04,470 --> 00:15:02,959
the moon

430
00:15:06,550 --> 00:15:04,480
so we have three science instruments if

431
00:15:09,269 --> 00:15:06,560
i can get my last graphic uh on our

432
00:15:10,790 --> 00:15:09,279
science payload to in order to explore

433
00:15:12,949 --> 00:15:10,800
these questions the first is the lunar

434
00:15:14,230 --> 00:15:12,959
dust experiment it is a

435
00:15:15,829 --> 00:15:14,240
designed and built to the by the

436
00:15:18,389 --> 00:15:15,839
university of colorado and it will

437
00:15:20,790 --> 00:15:18,399
actually analyze individual dust grains

438
00:15:22,310 --> 00:15:20,800
as they approach the spacecraft

439
00:15:23,829 --> 00:15:22,320
the second is a neutral mass

440
00:15:26,710 --> 00:15:23,839
spectrometer

441
00:15:28,550 --> 00:15:26,720
designed and built by nasa goddard

442
00:15:29,829 --> 00:15:28,560
it will actually look at the composition

443
00:15:31,590 --> 00:15:29,839
of the various molecules in the

444
00:15:33,750 --> 00:15:31,600
atmosphere as well as their distribution

445
00:15:35,829 --> 00:15:33,760
over the course of a lunar day

446
00:15:38,069 --> 00:15:35,839
the third and final instrument is an

447
00:15:40,870 --> 00:15:38,079
ultraviolet spectrometer

448
00:15:42,470 --> 00:15:40,880
brought to us by the nasa ames and it's

449
00:15:43,829 --> 00:15:42,480
not the first spectrometer that we've

450
00:15:45,670 --> 00:15:43,839
sent to the moon we've actually sent a

451
00:15:47,189 --> 00:15:45,680
number of spectrometers usually though

452
00:15:48,629 --> 00:15:47,199
when we send a spectrometer it's looking

453
00:15:50,230 --> 00:15:48,639
down at the surface of the moon so we

454
00:15:51,110 --> 00:15:50,240
can understand the mineralogy of the

455
00:15:52,870 --> 00:15:51,120
rocks

456
00:15:54,790 --> 00:15:52,880
at the surface this spectrometer will

457
00:15:56,310 --> 00:15:54,800
actually look sideways just above the

458
00:15:57,910 --> 00:15:56,320
lunar surface so that we can go through

459
00:16:00,629 --> 00:15:57,920
the atmosphere and analyze what is in

460
00:16:02,629 --> 00:16:00,639
the atmosphere and the dust environment

461
00:16:04,069 --> 00:16:02,639
so those are our three science payload

462
00:16:05,110 --> 00:16:04,079
there is a fourth payload as has been

463
00:16:07,430 --> 00:16:05,120
mentioned and i'm going to turn it over

464
00:16:09,509 --> 00:16:07,440
to don to introduce us to that one thank

465
00:16:11,189 --> 00:16:09,519
you sarah and i'd also like to thank the

466
00:16:13,269 --> 00:16:11,199
science mission directorate and the lady

467
00:16:15,430 --> 00:16:13,279
mission for uh giving us a ride to the

468
00:16:17,030 --> 00:16:15,440
moon our technology uh demonstration

469
00:16:19,910 --> 00:16:17,040
where we're going to

470
00:16:22,629 --> 00:16:19,920
use laser communications to demonstrate

471
00:16:24,230 --> 00:16:22,639
uh at least six times uh more uh more

472
00:16:25,670 --> 00:16:24,240
data rate from the moon than we can do

473
00:16:28,710 --> 00:16:25,680
with the radio system with half the

474
00:16:30,710 --> 00:16:28,720
weight and also 25 percent less power

475
00:16:32,870 --> 00:16:30,720
and my first graphic is up and if you

476
00:16:34,470 --> 00:16:32,880
can see that uh it actually gives a good

477
00:16:35,670 --> 00:16:34,480
illustration of what the concept of the

478
00:16:37,189 --> 00:16:35,680
mission is you can see the ladder

479
00:16:39,350 --> 00:16:37,199
spacecraft on the left and our

480
00:16:42,069 --> 00:16:39,360
instrument uh at the bottom which is a

481
00:16:44,150 --> 00:16:42,079
little small telescope and uh it will

482
00:16:46,150 --> 00:16:44,160
basically uh exchange laser beams

483
00:16:47,990 --> 00:16:46,160
between the earth and the moon to a new

484
00:16:51,189 --> 00:16:48,000
type of ground station

485
00:16:53,430 --> 00:16:51,199
uh and uh so with this system here uh we

486
00:16:55,749 --> 00:16:53,440
plan to be or we we will be nasa's first

487
00:16:57,030 --> 00:16:55,759
high rate two-way laser communications

488
00:16:59,749 --> 00:16:57,040
demonstration

489
00:17:02,629 --> 00:16:59,759
uh and uh riding along with lady to the

490
00:17:04,870 --> 00:17:02,639
moon uh the next slide please

491
00:17:06,949 --> 00:17:04,880
so nasa has a need for faster download

492
00:17:08,470 --> 00:17:06,959
speeds for data from space and it grows

493
00:17:11,669 --> 00:17:08,480
every day just like it does for the rest

494
00:17:13,350 --> 00:17:11,679
of us at home and also at work uh we'd

495
00:17:16,789 --> 00:17:13,360
like to be able to send high-resolution

496
00:17:18,870 --> 00:17:16,799
images and movies in in 3d even from

497
00:17:20,630 --> 00:17:18,880
satellites that not only orbit the earth

498
00:17:22,870 --> 00:17:20,640
but also from

499
00:17:24,789 --> 00:17:22,880
probes that'll go to the moon and beyond

500
00:17:27,510 --> 00:17:24,799
so communicating with radio waves has

501
00:17:29,190 --> 00:17:27,520
served us well for the last 50 years but

502
00:17:31,590 --> 00:17:29,200
we now have the technology to use light

503
00:17:32,870 --> 00:17:31,600
waves to communicate even more data

504
00:17:34,390 --> 00:17:32,880
light waves are much shorter in

505
00:17:35,669 --> 00:17:34,400
wavelength than radio waves as you can

506
00:17:38,150 --> 00:17:35,679
see in the figure

507
00:17:41,270 --> 00:17:38,160
and that allows us to use smaller

508
00:17:43,430 --> 00:17:41,280
transmitters and smaller receivers

509
00:17:45,990 --> 00:17:43,440
for example in in the figure you can see

510
00:17:48,150 --> 00:17:46,000
that a typical radio dish is on the left

511
00:17:49,830 --> 00:17:48,160
hand side and our ground terminal is on

512
00:17:53,510 --> 00:17:49,840
the right hand side and if you can on

513
00:17:55,990 --> 00:17:53,520
the animation please play the animation

514
00:17:57,909 --> 00:17:56,000
while we send six times more data and

515
00:18:00,150 --> 00:17:57,919
and use less power we're actually a

516
00:18:02,150 --> 00:18:00,160
bunch smaller uh quite a bit smaller as

517
00:18:03,029 --> 00:18:02,160
you can see so faster bandwidth smaller

518
00:18:05,750 --> 00:18:03,039
size

519
00:18:07,909 --> 00:18:05,760
and less power needed

520
00:18:09,830 --> 00:18:07,919
the next slide please

521
00:18:11,590 --> 00:18:09,840
so this is an animation of our actual

522
00:18:13,669 --> 00:18:11,600
mission concept right here we have three

523
00:18:15,430 --> 00:18:13,679
ground stations and then you can see the

524
00:18:18,470 --> 00:18:15,440
lady spacecraft and we've highlighted in

525
00:18:19,909 --> 00:18:18,480
bright blue our space terminal so a beam

526
00:18:21,990 --> 00:18:19,919
from the ground from one of the ground

527
00:18:24,150 --> 00:18:22,000
stations will uh scan

528
00:18:25,430 --> 00:18:24,160
around the moon uh to where we expect

529
00:18:27,990 --> 00:18:25,440
lady to be

530
00:18:29,830 --> 00:18:28,000
and uh when laddie sees that beam go by

531
00:18:31,909 --> 00:18:29,840
it will send its own signal back down to

532
00:18:33,590 --> 00:18:31,919
the ground station so that the two

533
00:18:35,830 --> 00:18:33,600
systems can lock up and acquire each

534
00:18:39,029 --> 00:18:35,840
other once the two systems are locked

535
00:18:41,510 --> 00:18:39,039
and acquired then we can send uh

536
00:18:43,909 --> 00:18:41,520
tens of megabits of data per second from

537
00:18:45,510 --> 00:18:43,919
the earth up to the moon and similarly

538
00:18:47,909 --> 00:18:45,520
we can send hundreds of megabits per

539
00:18:49,909 --> 00:18:47,919
second from the moon and

540
00:18:51,350 --> 00:18:49,919
on lati down to the earth

541
00:18:53,830 --> 00:18:51,360
and uh

542
00:18:55,430 --> 00:18:53,840
so we we hope that successfully

543
00:18:57,270 --> 00:18:55,440
successfully demonstrating this over and

544
00:18:58,710 --> 00:18:57,280
over again during the latte mission

545
00:19:00,710 --> 00:18:58,720
under all the conditions that you can

546
00:19:02,870 --> 00:19:00,720
see in the atmosphere and and day and

547
00:19:04,470 --> 00:19:02,880
night and and moon behind you and such

548
00:19:07,110 --> 00:19:04,480
will build the confidence for future

549
00:19:09,350 --> 00:19:07,120
nasa missions to use this technology for

550
00:19:11,029 --> 00:19:09,360
their communication systems

551
00:19:13,510 --> 00:19:11,039
finally i'd like to point out that the

552
00:19:15,830 --> 00:19:13,520
mit lincoln laboratory built our flight

553
00:19:17,029 --> 00:19:15,840
terminal and also built our primary

554
00:19:19,750 --> 00:19:17,039
ground terminal and we also have

555
00:19:22,630 --> 00:19:19,760
partners nasa's jpl has built a ground

556
00:19:24,230 --> 00:19:22,640
station for us in wrightwood california

557
00:19:26,390 --> 00:19:24,240
and then finally the european space

558
00:19:28,230 --> 00:19:26,400
agency has also built a ground station

559
00:19:29,430 --> 00:19:28,240
in uh tenerife spain

560
00:19:33,190 --> 00:19:29,440
and uh we're looking forward to

561
00:19:35,350 --> 00:19:33,200
collaborating with everyone and lady

562
00:19:37,029 --> 00:19:35,360
and i at this point i hand over to uh

563
00:19:40,390 --> 00:19:37,039
doug voss who is our launch manager at

564
00:19:41,830 --> 00:19:40,400
nasa's wallops thank you very much don

565
00:19:43,990 --> 00:19:41,840
it's an honor and a privilege to

566
00:19:45,510 --> 00:19:44,000
represent wallops and nasa and be a part

567
00:19:47,270 --> 00:19:45,520
of the laddie team for the last five

568
00:19:49,510 --> 00:19:47,280
years wallops flight facility has been

569
00:19:51,270 --> 00:19:49,520
working with nasa ames and all the other

570
00:19:53,669 --> 00:19:51,280
centers mentioned

571
00:19:56,150 --> 00:19:53,679
to deliver lady to the moon on its way

572
00:19:57,669 --> 00:19:56,160
on air force minotaur 5.

573
00:19:59,909 --> 00:19:57,679
wallops has been a very busy place in

574
00:20:01,590 --> 00:19:59,919
the last couple years as as you might

575
00:20:03,590 --> 00:20:01,600
note there have been a lot of missions

576
00:20:05,350 --> 00:20:03,600
that have been increasing in scope and

577
00:20:06,789 --> 00:20:05,360
size at wap's flight facility and lady

578
00:20:08,549 --> 00:20:06,799
is launching at a historic time at

579
00:20:10,630 --> 00:20:08,559
wallops wilds has been launching

580
00:20:13,110 --> 00:20:10,640
missions since 1945

581
00:20:14,789 --> 00:20:13,120
and in all of those flights uh from

582
00:20:17,270 --> 00:20:14,799
wallops and other places in

583
00:20:18,710 --> 00:20:17,280
in the uh in the world

584
00:20:20,549 --> 00:20:18,720
none of those flights have ever left

585
00:20:22,870 --> 00:20:20,559
earth's orbit so light is a historic

586
00:20:24,310 --> 00:20:22,880
moment as well as going to the moon and

587
00:20:26,950 --> 00:20:24,320
makes it very exciting for people like

588
00:20:28,789 --> 00:20:26,960
me and other people on the team

589
00:20:30,470 --> 00:20:28,799
wallops is exercising a relationship

590
00:20:33,110 --> 00:20:30,480
with the us air force that we've been

591
00:20:35,909 --> 00:20:33,120
working with for a few years actually

592
00:20:38,230 --> 00:20:35,919
since 2006 to fly minotaur once from

593
00:20:39,990 --> 00:20:38,240
wallops for air force dod missions

594
00:20:42,149 --> 00:20:40,000
so with lady we're putting a nasa

595
00:20:43,750 --> 00:20:42,159
mission on top of a minotaur vehicle and

596
00:20:45,669 --> 00:20:43,760
it's a new minotaur vehicle that we've

597
00:20:47,270 --> 00:20:45,679
never flown from wallops flight facility

598
00:20:48,390 --> 00:20:47,280
so it's a very exciting time for us and

599
00:20:50,710 --> 00:20:48,400
the air force

600
00:20:52,390 --> 00:20:50,720
and the rest of the agency

601
00:20:53,590 --> 00:20:52,400
i have a visualization i'm going to show

602
00:20:55,430 --> 00:20:53,600
you and talk to you a little bit about

603
00:20:56,950 --> 00:20:55,440
the flight it's developed by engineers

604
00:20:58,630 --> 00:20:56,960
at wallops flight facility and we use

605
00:20:59,750 --> 00:20:58,640
this visualization for engineering and

606
00:21:01,270 --> 00:20:59,760
planning

607
00:21:04,230 --> 00:21:01,280
now the minotaur 5 is going to be

608
00:21:07,510 --> 00:21:04,240
launching from virginia spaceport pad 0b

609
00:21:09,669 --> 00:21:07,520
and this five-stage solid fuel rocket is

610
00:21:11,510 --> 00:21:09,679
going to lift off as mentioned earlier

611
00:21:13,190 --> 00:21:11,520
11 27 pm

612
00:21:14,789 --> 00:21:13,200
friday september 6th

613
00:21:16,470 --> 00:21:14,799
and it's going to take off and fly over

614
00:21:18,549 --> 00:21:16,480
the atlantic ocean

615
00:21:20,870 --> 00:21:18,559
this five-stage rocket will drop its

616
00:21:23,190 --> 00:21:20,880
first three stages in the atlantic ocean

617
00:21:24,789 --> 00:21:23,200
while nasa systems located at wallops

618
00:21:26,390 --> 00:21:24,799
flight facility

619
00:21:28,950 --> 00:21:26,400
nearby north carolina outer banks

620
00:21:31,190 --> 00:21:28,960
coquina and on bermuda will be tracking

621
00:21:34,390 --> 00:21:31,200
the rocket on its flight out

622
00:21:35,990 --> 00:21:34,400
so as does the icbm peacekeeper stages

623
00:21:37,750 --> 00:21:36,000
fall into the ocean these systems will

624
00:21:39,590 --> 00:21:37,760
be relaying data back to wallops flight

625
00:21:41,430 --> 00:21:39,600
facility giving

626
00:21:42,549 --> 00:21:41,440
personnel in the range control center

627
00:21:46,950 --> 00:21:42,559
and in the air

628
00:21:48,789 --> 00:21:46,960
will be having taking that information

629
00:21:49,909 --> 00:21:48,799
um and observing the flight on the way

630
00:21:53,669 --> 00:21:49,919
out

631
00:21:55,190 --> 00:21:53,679
important to note that the data coming

632
00:21:57,029 --> 00:21:55,200
back from these

633
00:21:58,549 --> 00:21:57,039
these are these facilities in the

634
00:22:01,270 --> 00:21:58,559
atlantic ocean of bermuda

635
00:22:03,909 --> 00:22:01,280
will be used to to assess the vehicle

636
00:22:05,510 --> 00:22:03,919
and to monitor its performance

637
00:22:07,990 --> 00:22:05,520
it's real important to note also that

638
00:22:10,149 --> 00:22:08,000
these stages are icbm stages that were

639
00:22:11,510 --> 00:22:10,159
on peacekeeper vehicles that were used

640
00:22:12,470 --> 00:22:11,520
by the air force so they're highly

641
00:22:15,830 --> 00:22:12,480
reliable

642
00:22:18,390 --> 00:22:17,110
the fourth and fifth stage are

643
00:22:20,870 --> 00:22:18,400
commercial rocket motors that are

644
00:22:22,149 --> 00:22:20,880
stacked on them and right now on the

645
00:22:24,070 --> 00:22:22,159
visualization you see the fairing

646
00:22:25,750 --> 00:22:24,080
separation and that fairing separation

647
00:22:29,270 --> 00:22:25,760
exposes the ladies spacecraft and the

648
00:22:32,870 --> 00:22:29,280
new minotaur five fifth stage

649
00:22:36,870 --> 00:22:35,510
you'll see that the tdrs system

650
00:22:38,870 --> 00:22:36,880
will be used

651
00:22:40,470 --> 00:22:38,880
to collect the data as the space as the

652
00:22:44,070 --> 00:22:40,480
launch vehicle gets downrange and out of

653
00:22:45,669 --> 00:22:44,080
range of of tracking assets

654
00:22:47,270 --> 00:22:45,679
so at this point in the flight the

655
00:22:48,789 --> 00:22:47,280
vehicle is in orbit and the stage four

656
00:22:50,310 --> 00:22:48,799
ignites

657
00:22:52,870 --> 00:22:50,320
and that the stage four takes the

658
00:22:54,710 --> 00:22:52,880
vehicle up to prepare it for its final

659
00:22:58,149 --> 00:22:54,720
phase on the way to

660
00:23:02,549 --> 00:23:00,950
and after stage four separates we enter

661
00:23:04,470 --> 00:23:02,559
the stage where the minotaur five fifth

662
00:23:06,310 --> 00:23:04,480
stage is going to do its work

663
00:23:08,630 --> 00:23:06,320
the first thing we have to do is spin

664
00:23:10,549 --> 00:23:08,640
the upper stack together

665
00:23:13,510 --> 00:23:10,559
and the the lady spacecraft and minotaur

666
00:23:15,190 --> 00:23:13,520
5 will spin and be spin stabilized

667
00:23:17,750 --> 00:23:15,200
before the fifth stage ignites when the

668
00:23:19,750 --> 00:23:17,760
fifth stage ignites

669
00:23:21,350 --> 00:23:19,760
the tdrs data will be transmitted via

670
00:23:23,750 --> 00:23:21,360
the tdrs system back to wallops flight

671
00:23:27,830 --> 00:23:23,760
facility

672
00:23:31,270 --> 00:23:29,830
the system will despin we have a yo-yo

673
00:23:32,310 --> 00:23:31,280
d-spin that orbital sciences has

674
00:23:34,149 --> 00:23:32,320
developed

675
00:23:36,710 --> 00:23:34,159
along with the rest of the systems on

676
00:23:38,549 --> 00:23:36,720
the fifth stage this system separates

677
00:23:39,750 --> 00:23:38,559
the system de-spins the system so lady

678
00:23:42,070 --> 00:23:39,760
can separate

679
00:23:45,510 --> 00:23:42,080
and then turn on and begin its trip to

680
00:23:48,470 --> 00:23:47,190
so

681
00:23:50,230 --> 00:23:48,480
this vehicle is going to be launching at

682
00:23:51,909 --> 00:23:50,240
night so it should be easily visible

683
00:23:53,190 --> 00:23:51,919
from a lot of locations on the east

684
00:23:55,270 --> 00:23:53,200
coast

685
00:23:57,270 --> 00:23:55,280
the next visualization you'll see is the

686
00:23:58,950 --> 00:23:57,280
graphic of the east coast of the united

687
00:24:04,630 --> 00:23:58,960
states i'm going to switch to that

688
00:24:07,830 --> 00:24:06,549
and so in this graphic you'll see that

689
00:24:13,590 --> 00:24:07,840
the

690
00:24:15,029 --> 00:24:13,600
west as pittsburgh you'll be able to

691
00:24:16,870 --> 00:24:15,039
be able to see the vehicle depending on

692
00:24:19,029 --> 00:24:16,880
weather conditions you can actually go

693
00:24:21,110 --> 00:24:19,039
online to nasa's website and get this

694
00:24:23,269 --> 00:24:21,120
information and figure out which way to

695
00:24:24,630 --> 00:24:23,279
look to see laddie heads on its way to

696
00:24:25,909 --> 00:24:24,640
the moon

697
00:24:27,430 --> 00:24:25,919
thank you

698
00:24:28,870 --> 00:24:27,440
and back to dwayne

699
00:24:30,630 --> 00:24:28,880
well thank you all now it's time we're

700
00:24:33,029 --> 00:24:30,640
going to go ahead and transition into

701
00:24:35,430 --> 00:24:33,039
the question and answer uh we're gonna

702
00:24:37,750 --> 00:24:35,440
go to the phone lines first and then uh

703
00:24:38,630 --> 00:24:37,760
of course remember the public that's out

704
00:24:40,630 --> 00:24:38,640
there

705
00:24:42,950 --> 00:24:40,640
bring send your question into hashtag

706
00:24:45,350 --> 00:24:42,960
ask nasa join the conversation it's

707
00:24:48,549 --> 00:24:45,360
building and building at

708
00:24:50,870 --> 00:24:48,559
atlanti i'm sorry at nasa laddie but if

709
00:24:53,750 --> 00:24:50,880
you have a question again send it in to

710
00:24:55,590 --> 00:24:53,760
hashtag ask nasa but right now we're

711
00:24:58,070 --> 00:24:55,600
going to go to the phones first and i

712
00:25:08,549 --> 00:24:58,080
believe we have marcia smith on the line

713
00:25:12,470 --> 00:25:10,230
what i will do if marshall's not there

714
00:25:17,750 --> 00:25:12,480
let me go ahead and take and ask and ask

715
00:25:21,029 --> 00:25:19,190
okay

716
00:25:23,110 --> 00:25:21,039
i'm hearing uh marcia she's going to be

717
00:25:24,710 --> 00:25:23,120
with us so for the group here for an ask

718
00:25:26,710 --> 00:25:24,720
nasa question

719
00:25:28,230 --> 00:25:26,720
if laddie doesn't launch september 6

720
00:25:29,430 --> 00:25:28,240
what other launch opportunities will

721
00:25:31,029 --> 00:25:29,440
there be

722
00:25:31,990 --> 00:25:31,039
i can answer that

723
00:25:35,750 --> 00:25:32,000
the

724
00:25:37,830 --> 00:25:35,760
window and since we're leaving earth

725
00:25:39,590 --> 00:25:37,840
orbit we have a

726
00:25:42,070 --> 00:25:39,600
pretty tight constraints on when we can

727
00:25:43,669 --> 00:25:42,080
launch so we have a window on the six

728
00:25:45,190 --> 00:25:43,679
and then we have another four nights

729
00:25:46,789 --> 00:25:45,200
that we can launch

730
00:25:49,110 --> 00:25:46,799
if we don't get out for some reason the

731
00:25:50,470 --> 00:25:49,120
weather's too bad then we stand down for

732
00:25:53,269 --> 00:25:50,480
a couple of days and then we can make

733
00:25:55,350 --> 00:25:53,279
another attempt for uh four days before

734
00:25:57,110 --> 00:25:55,360
before the windows close

735
00:25:59,669 --> 00:25:57,120
after that we have some more windows in

736
00:26:01,590 --> 00:25:59,679
october but uh but we need to get off

737
00:26:03,430 --> 00:26:01,600
the ground by the end of october

738
00:26:05,430 --> 00:26:03,440
otherwise an eclipse season starts

739
00:26:06,950 --> 00:26:05,440
around the moon that has very deep cold

740
00:26:08,870 --> 00:26:06,960
eclipses and

741
00:26:11,190 --> 00:26:08,880
those are eclipses of spacecraft's not

742
00:26:12,870 --> 00:26:11,200
designed to survive so

743
00:26:15,510 --> 00:26:12,880
september and october are our primary

744
00:26:18,950 --> 00:26:17,590
okay let's see if we can uh go back to

745
00:26:20,950 --> 00:26:18,960
the phone lines here and i believe we

746
00:26:22,070 --> 00:26:20,960
have uh alan boyle alan if you're there

747
00:26:23,190 --> 00:26:22,080
god please

748
00:26:24,710 --> 00:26:23,200
give your name again and your

749
00:26:26,950 --> 00:26:24,720
affiliation

750
00:26:30,549 --> 00:26:26,960
okay all right this is alan boyle with

751
00:26:33,669 --> 00:26:30,559
uh nbc news and uh had a question just

752
00:26:36,789 --> 00:26:33,679
about uh lady has had quite a history i

753
00:26:38,390 --> 00:26:36,799
think when the the mission was first uh

754
00:26:42,149 --> 00:26:38,400
raised

755
00:26:44,950 --> 00:26:42,159
it was going to support future nasa

756
00:26:48,070 --> 00:26:44,960
manned missions to the moon uh now the

757
00:26:50,470 --> 00:26:48,080
focus has shifted elsewhere do you feel

758
00:26:52,549 --> 00:26:50,480
how did that change the character of the

759
00:26:54,230 --> 00:26:52,559
mission and can you talk a little bit

760
00:26:56,230 --> 00:26:54,240
about the long-term goals that are

761
00:27:00,470 --> 00:26:56,240
served in terms of exploration by this

762
00:27:05,430 --> 00:27:03,269
you want to take a shot at uh john

763
00:27:07,269 --> 00:27:05,440
how do you want to do this john

764
00:27:09,269 --> 00:27:07,279
but the way the question was asked about

765
00:27:10,950 --> 00:27:09,279
lady being a human mission is not

766
00:27:13,190 --> 00:27:10,960
correct it was never designed as a human

767
00:27:15,350 --> 00:27:13,200
mission it was always a low-cost robotic

768
00:27:16,789 --> 00:27:15,360
science mission uh from the beginning

769
00:27:19,350 --> 00:27:16,799
i'm personally not aware of anything

770
00:27:21,029 --> 00:27:19,360
else called lady in the agency that was

771
00:27:22,870 --> 00:27:21,039
related to humans

772
00:27:25,669 --> 00:27:22,880
so if the question wants to be repeated

773
00:27:28,310 --> 00:27:25,679
in any format go ahead but ladie was not

774
00:27:30,710 --> 00:27:28,320
designed to be involved with humans so i

775
00:27:31,909 --> 00:27:30,720
can uh i can add to that um

776
00:27:34,390 --> 00:27:31,919
i think what the

777
00:27:36,549 --> 00:27:34,400
the questioner is asking is

778
00:27:38,390 --> 00:27:36,559
at the early times

779
00:27:40,149 --> 00:27:38,400
dust is a very

780
00:27:41,190 --> 00:27:40,159
difficult environment to deal with on

781
00:27:42,549 --> 00:27:41,200
the moon

782
00:27:44,390 --> 00:27:42,559
it's not like terrestrial dust

783
00:27:47,029 --> 00:27:44,400
terrestrial dust is like talcum powder

784
00:27:49,669 --> 00:27:47,039
on the moon it's very rough and it can

785
00:27:52,390 --> 00:27:49,679
actually follow it's very kind of evil

786
00:27:54,230 --> 00:27:52,400
it follows electric field lines it works

787
00:27:55,590 --> 00:27:54,240
its way in equipment so one of the the

788
00:27:58,230 --> 00:27:55,600
questions about

789
00:28:00,149 --> 00:27:58,240
dust on the moon is is an engineering

790
00:28:01,590 --> 00:28:00,159
question how do you design things so

791
00:28:02,470 --> 00:28:01,600
that they can survive the dust

792
00:28:04,870 --> 00:28:02,480
environment

793
00:28:07,029 --> 00:28:04,880
and that was the connection to the the

794
00:28:08,870 --> 00:28:07,039
human efforts at the beginning of lady

795
00:28:11,190 --> 00:28:08,880
was not only the scientific question

796
00:28:12,549 --> 00:28:11,200
about how elevated dust uh operates

797
00:28:14,549 --> 00:28:12,559
around the moon transports around the

798
00:28:16,230 --> 00:28:14,559
moon but also information about the dust

799
00:28:18,310 --> 00:28:16,240
transport mechanisms for engineering

800
00:28:20,389 --> 00:28:18,320
purposes and the goal of laddie was to

801
00:28:22,549 --> 00:28:20,399
do these measurements before

802
00:28:25,669 --> 00:28:22,559
future human activity occurred which is

803
00:28:27,190 --> 00:28:25,679
something sarah talked about

804
00:28:29,430 --> 00:28:27,200
i think

805
00:28:30,710 --> 00:28:29,440
just to expand on that a little bit

806
00:28:32,549 --> 00:28:30,720
butler i think

807
00:28:33,909 --> 00:28:32,559
you gave great answers and

808
00:28:37,269 --> 00:28:33,919
another thing that we've learned about

809
00:28:39,830 --> 00:28:37,279
the moon from the uh l cross mission is

810
00:28:41,430 --> 00:28:39,840
the possibility of water on the moon and

811
00:28:43,269 --> 00:28:41,440
how does it get trapped in these cold

812
00:28:46,230 --> 00:28:43,279
traps and other places that we've seen

813
00:28:48,389 --> 00:28:46,240
it and so understanding this tenuous

814
00:28:50,549 --> 00:28:48,399
atmosphere and the transport mechanisms

815
00:28:52,389 --> 00:28:50,559
of dust and other atmospheric components

816
00:28:54,789 --> 00:28:52,399
will tell us a lot about you know both

817
00:28:57,430 --> 00:28:54,799
the scientific aspects and future lunar

818
00:29:00,070 --> 00:28:57,440
exploration aspects uh you know we're

819
00:29:02,950 --> 00:29:00,080
exploring all across the solar system uh

820
00:29:05,510 --> 00:29:02,960
you know from you know just a very rough

821
00:29:07,430 --> 00:29:05,520
view the moon kind of looks like mercury

822
00:29:08,950 --> 00:29:07,440
and you would never think that mercury

823
00:29:10,630 --> 00:29:08,960
so close to the sun would have an

824
00:29:12,870 --> 00:29:10,640
atmosphere you know but there's some

825
00:29:14,710 --> 00:29:12,880
hints that even mercury you know has a

826
00:29:16,950 --> 00:29:14,720
tenuous atmosphere from our messenger

827
00:29:18,710 --> 00:29:16,960
mission and so lady is part of a much

828
00:29:20,870 --> 00:29:18,720
broader scientific exploration of the

829
00:29:22,230 --> 00:29:20,880
solar system uh that we do here in the

830
00:29:23,029 --> 00:29:22,240
science mission directorate but of

831
00:29:25,110 --> 00:29:23,039
course

832
00:29:28,070 --> 00:29:25,120
all of our exploration science or

833
00:29:29,750 --> 00:29:28,080
otherwise is human exploration uh you

834
00:29:31,830 --> 00:29:29,760
know i have to remind my kids sometime

835
00:29:35,110 --> 00:29:31,840
that scientists are people too are

836
00:29:36,710 --> 00:29:35,120
humans too especially myself

837
00:29:39,590 --> 00:29:36,720
so you know this is part of a much

838
00:29:41,909 --> 00:29:39,600
broader exploration agenda and the same

839
00:29:44,230 --> 00:29:41,919
question can be asked about larger

840
00:29:47,269 --> 00:29:44,240
asteroids if you look at

841
00:29:49,750 --> 00:29:47,279
at a series or a vesta you know does

842
00:29:51,350 --> 00:29:49,760
ceres invest in the main asteroid belt

843
00:29:53,590 --> 00:29:51,360
do they have atmospheres what are the

844
00:29:55,269 --> 00:29:53,600
transport properties of dust

845
00:29:56,870 --> 00:29:55,279
from collisions

846
00:29:58,870 --> 00:29:56,880
clearly the moon

847
00:30:00,710 --> 00:29:58,880
is there you know this what we see on

848
00:30:02,549 --> 00:30:00,720
the moon the visual surface is the

849
00:30:03,590 --> 00:30:02,559
result of asteroid collisions on the

850
00:30:05,350 --> 00:30:03,600
moon

851
00:30:06,549 --> 00:30:05,360
and so in the main asteroid belt there's

852
00:30:08,389 --> 00:30:06,559
you know

853
00:30:10,549 --> 00:30:08,399
speaking in very long time frames lots

854
00:30:11,830 --> 00:30:10,559
of collisions uh and so the same

855
00:30:14,870 --> 00:30:11,840
questions are out there so this is part

856
00:30:15,909 --> 00:30:14,880
of the broader scientific exploration

857
00:30:18,389 --> 00:30:15,919
thanks john

858
00:30:20,230 --> 00:30:18,399
uh we're gonna take another call on the

859
00:30:22,389 --> 00:30:20,240
phone line and then we're gonna go

860
00:30:25,029 --> 00:30:22,399
back to social media again if you have a

861
00:30:26,310 --> 00:30:25,039
question hashtag ask nasa join the

862
00:30:27,990 --> 00:30:26,320
conversation

863
00:30:29,830 --> 00:30:28,000
at nasa laddie

864
00:30:32,710 --> 00:30:29,840
on the phone next carol in chin new york

865
00:30:39,029 --> 00:30:37,029
hi um can you hear me yes

866
00:30:41,669 --> 00:30:39,039
okay great um i was wondering if you

867
00:30:43,909 --> 00:30:41,679
could um uh explain what the price tag

868
00:30:47,590 --> 00:30:43,919
of the mission is and put that into some

869
00:30:49,590 --> 00:30:47,600
context with um the original goal of the

870
00:30:51,590 --> 00:30:49,600
lunar request program to

871
00:30:53,269 --> 00:30:51,600
you know be less expensive you've

872
00:30:55,190 --> 00:30:53,279
mentioned many times that the new

873
00:30:56,070 --> 00:30:55,200
modular design has

874
00:30:58,389 --> 00:30:56,080
um

875
00:31:00,310 --> 00:30:58,399
the possibility of saving money and i

876
00:31:02,149 --> 00:31:00,320
was wondering if you could extend the

877
00:31:04,149 --> 00:31:02,159
price tag of this mission and also

878
00:31:06,070 --> 00:31:04,159
compare that to previous lunar missions

879
00:31:08,870 --> 00:31:06,080
or any other you know comparable

880
00:31:10,149 --> 00:31:08,880
missions to give some context

881
00:31:12,630 --> 00:31:10,159
sure

882
00:31:14,710 --> 00:31:12,640
ladies price tags coming in at 280

883
00:31:15,669 --> 00:31:14,720
million for the full life cycle cost of

884
00:31:17,269 --> 00:31:15,679
laddie

885
00:31:19,750 --> 00:31:17,279
and the way we one of the ways we

886
00:31:21,269 --> 00:31:19,760
categorize our missions

887
00:31:23,590 --> 00:31:21,279
there's a number of factors but one of

888
00:31:25,830 --> 00:31:23,600
those is cost and we call them cat one

889
00:31:27,590 --> 00:31:25,840
two or three based on

890
00:31:29,830 --> 00:31:27,600
costs and other things we look at

891
00:31:33,029 --> 00:31:29,840
missions that are over a billion between

892
00:31:35,909 --> 00:31:33,039
250 million and one billion or less than

893
00:31:38,950 --> 00:31:35,919
250 and this mission came in at the low

894
00:31:40,630 --> 00:31:38,960
end of cat two so it's just it almost

895
00:31:42,789 --> 00:31:40,640
made the cat one the lowest cost

896
00:31:49,830 --> 00:31:42,799
missions that we have so it's just over

897
00:31:54,870 --> 00:31:51,750
carolyn did you uh

898
00:31:56,950 --> 00:31:54,880
did that answer your question

899
00:31:58,389 --> 00:31:56,960
yeah i was wondering if that was within

900
00:32:00,630 --> 00:31:58,399
could you get some context for that

901
00:32:03,029 --> 00:32:00,640
number is that what was expected from

902
00:32:05,350 --> 00:32:03,039
the outset was how does it compare to

903
00:32:06,149 --> 00:32:05,360
say the grail mission

904
00:32:13,909 --> 00:32:06,159
or

905
00:32:17,590 --> 00:32:13,919
would guess grail was discovery so that

906
00:32:19,909 --> 00:32:17,600
was what about 350 million approximately

907
00:32:21,750 --> 00:32:19,919
but i really shouldn't say because i

908
00:32:23,990 --> 00:32:21,760
don't know for certain on that i will

909
00:32:25,590 --> 00:32:24,000
say that over the last 10 years

910
00:32:27,509 --> 00:32:25,600
approximately

911
00:32:30,470 --> 00:32:27,519
20 percent of our missions have been in

912
00:32:32,950 --> 00:32:30,480
the lowest cost range below 250 and 20

913
00:32:35,430 --> 00:32:32,960
percent have been over a billion and 60

914
00:32:37,190 --> 00:32:35,440
percent have been in that mid-range

915
00:32:38,870 --> 00:32:37,200
and and carolyn you can call my office

916
00:32:41,029 --> 00:32:38,880
and we can get you some some additional

917
00:32:42,549 --> 00:32:41,039
figures to uh put in in context we don't

918
00:32:44,070 --> 00:32:42,559
want to put those numbers out we just

919
00:32:45,750 --> 00:32:44,080
want to make sure we can uh get them

920
00:32:46,870 --> 00:32:45,760
accurate so just give me a call on that

921
00:32:47,909 --> 00:32:46,880
so this is what we're going to do ladies

922
00:32:49,590 --> 00:32:47,919
and gentlemen we're going to go to the

923
00:32:52,070 --> 00:32:49,600
real expert on social media who's

924
00:32:53,269 --> 00:32:52,080
joining us here today with say ask and

925
00:32:54,870 --> 00:32:53,279
ask the question we're going to switch

926
00:32:58,310 --> 00:32:54,880
over to my colleague jason townsend

927
00:33:00,070 --> 00:32:58,320
who's monitoring ask nasa jason

928
00:33:02,149 --> 00:33:00,080
hi we have a question here from twitter

929
00:33:04,710 --> 00:33:02,159
user daniel fisher could someone on the

930
00:33:06,870 --> 00:33:04,720
panel address the hoped for involvement

931
00:33:10,149 --> 00:33:06,880
of amateur astronomers in support of

932
00:33:11,830 --> 00:33:10,159
nasa ladies science goals

933
00:33:14,389 --> 00:33:11,840
sure i can i can address that this is

934
00:33:16,870 --> 00:33:14,399
sarah so yeah we are very interested in

935
00:33:18,870 --> 00:33:16,880
having participation uh from amateur

936
00:33:20,789 --> 00:33:18,880
astronomers around the world we'd really

937
00:33:22,870 --> 00:33:20,799
like to be able to um

938
00:33:25,269 --> 00:33:22,880
see what's going on on the moon so we're

939
00:33:26,710 --> 00:33:25,279
orbiting the moon we've got lro looking

940
00:33:27,909 --> 00:33:26,720
and stuff but there are impacts hitting

941
00:33:29,269 --> 00:33:27,919
the moon all the time and we want to

942
00:33:31,190 --> 00:33:29,279
know what impact

943
00:33:33,190 --> 00:33:31,200
impact those impacts are having on the

944
00:33:35,830 --> 00:33:33,200
atmosphere in dust environment

945
00:33:38,230 --> 00:33:35,840
so we've asked amateur astronomers

946
00:33:40,070 --> 00:33:38,240
to to actually watch the moon and take a

947
00:33:41,350 --> 00:33:40,080
look and see if they see impacts coming

948
00:33:47,669 --> 00:33:41,360
in

949
00:33:50,070 --> 00:33:47,679
are below that level we actually have a

950
00:33:51,190 --> 00:33:50,080
web app where you can go and actually

951
00:33:54,870 --> 00:33:51,200
monitor

952
00:33:57,029 --> 00:33:54,880
meteorites coming through in on earth so

953
00:33:58,389 --> 00:33:57,039
if you figure that you know as we go

954
00:34:00,149 --> 00:33:58,399
through a

955
00:34:01,190 --> 00:34:00,159
meteorite storm certain number of things

956
00:34:02,789 --> 00:34:01,200
are hitting the moon they're also

957
00:34:03,750 --> 00:34:02,799
hitting the earth at roughly the same

958
00:34:05,590 --> 00:34:03,760
rates

959
00:34:08,550 --> 00:34:05,600
so we'd actually are interested in in

960
00:34:09,909 --> 00:34:08,560
acquiring um data about how many things

961
00:34:11,990 --> 00:34:09,919
are hitting the earth at any given time

962
00:34:13,589 --> 00:34:12,000
as well and so there's actually an app

963
00:34:15,430 --> 00:34:13,599
uh you can find the information for it

964
00:34:17,030 --> 00:34:15,440
on the laddie website to download the

965
00:34:19,990 --> 00:34:17,040
app it's free and you can go out at

966
00:34:21,589 --> 00:34:20,000
night and count meteors uh and and add

967
00:34:22,869 --> 00:34:21,599
that data to our collective knowledge so

968
00:34:25,109 --> 00:34:22,879
anybody can participate in the lightning

969
00:34:27,510 --> 00:34:25,119
mission

970
00:34:29,349 --> 00:34:27,520
jason some more questions indeed from

971
00:34:31,669 --> 00:34:29,359
twitter user jim way

972
00:34:36,869 --> 00:34:31,679
can you explain more about the dspin

973
00:34:41,190 --> 00:34:38,869
yeah this is doug foss from wild sure i

974
00:34:43,190 --> 00:34:41,200
can answer that question so the d spin

975
00:34:46,310 --> 00:34:43,200
proceed procedure is important because

976
00:34:49,030 --> 00:34:46,320
when we we when the upper stage is spun

977
00:34:51,270 --> 00:34:49,040
by this spin rocket motors

978
00:34:53,349 --> 00:34:51,280
the system needs to be de-spun before

979
00:34:55,270 --> 00:34:53,359
separation so that when the ladder

980
00:34:56,869 --> 00:34:55,280
spacecraft separates

981
00:34:59,270 --> 00:34:56,879
there's no forces applied onto it that

982
00:35:03,190 --> 00:34:59,280
would cause it to tumble well the d-spin

983
00:35:04,870 --> 00:35:03,200
procedure in this case is using weights

984
00:35:07,349 --> 00:35:04,880
that are connected to a cable that are

985
00:35:08,630 --> 00:35:07,359
released and as those weights expand out

986
00:35:11,349 --> 00:35:08,640
from the body

987
00:35:13,109 --> 00:35:11,359
of the the mass that the center of mass

988
00:35:15,910 --> 00:35:13,119
moves out from the body

989
00:35:17,589 --> 00:35:15,920
and the inertia is changed and the body

990
00:35:19,510 --> 00:35:17,599
the whole body slows down and stops

991
00:35:21,030 --> 00:35:19,520
eventually so these types of systems

992
00:35:23,510 --> 00:35:21,040
have been used on suborbital vehicles

993
00:35:26,790 --> 00:35:23,520
quite a bit by nasal wallops as well as

994
00:35:28,390 --> 00:35:26,800
some elvs uh before the minotaur five so

995
00:35:29,990 --> 00:35:28,400
the concept in the design is actually

996
00:35:31,829 --> 00:35:30,000
pretty old a wallops fight facility has

997
00:35:33,829 --> 00:35:31,839
been flying sounding rockets in this

998
00:35:35,109 --> 00:35:33,839
same way for many many years

999
00:35:35,990 --> 00:35:35,119
so

1000
00:35:37,349 --> 00:35:36,000
that's

1001
00:35:39,589 --> 00:35:37,359
essentially not a new part of the

1002
00:35:41,910 --> 00:35:39,599
technology but it is a new element on

1003
00:35:43,190 --> 00:35:41,920
this upper stage

1004
00:35:45,109 --> 00:35:43,200
and jason let's take a couple more

1005
00:35:47,510 --> 00:35:45,119
questions from uh ask nasa and then we

1006
00:35:48,310 --> 00:35:47,520
go back to the phone lines jason

1007
00:35:51,750 --> 00:35:48,320
sure

1008
00:35:53,430 --> 00:35:51,760
twitter user ricardo battalani asks why

1009
00:35:56,790 --> 00:35:53,440
do you need to spin up the rocket before

1010
00:35:59,829 --> 00:35:58,230
sure doug vos from wall street and i'll

1011
00:36:01,670 --> 00:35:59,839
take that the um

1012
00:36:03,109 --> 00:36:01,680
the purpose for spin stabilization of

1013
00:36:05,270 --> 00:36:03,119
the upper stage

1014
00:36:06,790 --> 00:36:05,280
is is actually twofold when you have a

1015
00:36:08,630 --> 00:36:06,800
spinning body

1016
00:36:10,870 --> 00:36:08,640
newton's first law is that objects that

1017
00:36:12,630 --> 00:36:10,880
are in motion tend to stay in motion so

1018
00:36:14,390 --> 00:36:12,640
as the body spinning any outside

1019
00:36:17,030 --> 00:36:14,400
disturbances that are applied to it as

1020
00:36:18,550 --> 00:36:17,040
it flies are actually the the body

1021
00:36:20,710 --> 00:36:18,560
that's spinning

1022
00:36:22,550 --> 00:36:20,720
the effect is not as much on the body

1023
00:36:23,589 --> 00:36:22,560
the other thing is that while the fifth

1024
00:36:25,589 --> 00:36:23,599
stage

1025
00:36:27,030 --> 00:36:25,599
is actually thrusting the errors that

1026
00:36:29,349 --> 00:36:27,040
are accumulated

1027
00:36:30,950 --> 00:36:29,359
are averaged out because the errors are

1028
00:36:32,710 --> 00:36:30,960
from the thrust are pointed in multiple

1029
00:36:34,870 --> 00:36:32,720
directions at one time so that error is

1030
00:36:36,950 --> 00:36:34,880
averaged out so orbital sciences has

1031
00:36:38,069 --> 00:36:36,960
applied this this concept to the upper

1032
00:36:39,910 --> 00:36:38,079
stage

1033
00:36:42,550 --> 00:36:39,920
to meet the latte insertion accuracy

1034
00:36:44,150 --> 00:36:42,560
requirements for the mission

1035
00:36:46,710 --> 00:36:44,160
one more

1036
00:36:48,870 --> 00:36:46,720
okay from twitter user marcia smith

1037
00:36:50,390 --> 00:36:48,880
if laddie's laser com demo works from

1038
00:36:52,470 --> 00:36:50,400
the moon will lasercom work from

1039
00:36:54,550 --> 00:36:52,480
anywhere in the solar system

1040
00:36:55,589 --> 00:36:54,560
uh this is don cornwall from llcd i'll

1041
00:36:57,670 --> 00:36:55,599
take that

1042
00:36:59,910 --> 00:36:57,680
uh as you go further out

1043
00:37:01,349 --> 00:36:59,920
from the moon uh then you'll need uh

1044
00:37:03,670 --> 00:37:01,359
more photons

1045
00:37:05,829 --> 00:37:03,680
and uh and bigger systems but at the

1046
00:37:08,230 --> 00:37:05,839
same time uh when you compare what you

1047
00:37:10,710 --> 00:37:08,240
can do with the laser because a laser

1048
00:37:12,950 --> 00:37:10,720
beam can be collimated to be much

1049
00:37:15,190 --> 00:37:12,960
tighter than a radio

1050
00:37:17,510 --> 00:37:15,200
wave you can deliver more

1051
00:37:19,349 --> 00:37:17,520
energy at a greater distance than you

1052
00:37:21,430 --> 00:37:19,359
can with a radio wave that might be

1053
00:37:23,829 --> 00:37:21,440
dispersing so actually lasercom gets

1054
00:37:25,589 --> 00:37:23,839
more attractive compared to radio as you

1055
00:37:28,550 --> 00:37:25,599
go further in the solar system so we

1056
00:37:30,710 --> 00:37:28,560
hope to to to use these systems from

1057
00:37:31,510 --> 00:37:30,720
mars one day for example and and there

1058
00:37:33,510 --> 00:37:31,520
are

1059
00:37:35,190 --> 00:37:33,520
uh some research efforts there to look

1060
00:37:36,390 --> 00:37:35,200
at that

1061
00:37:37,910 --> 00:37:36,400
okay we're gonna go back to the phone

1062
00:37:39,750 --> 00:37:37,920
bridge but again ladies and gentlemen

1063
00:37:42,310 --> 00:37:39,760
keep those questions coming in

1064
00:37:43,910 --> 00:37:42,320
hashtag ask nasa and continue to join

1065
00:37:45,990 --> 00:37:43,920
the conversation

1066
00:37:48,829 --> 00:37:46,000
at nasa laddie back to the phone lines

1067
00:37:50,470 --> 00:37:48,839
and i believe we have irene from reuters

1068
00:37:52,550 --> 00:37:50,480
irene

1069
00:37:55,510 --> 00:37:52,560
thanks duane um i have a couple

1070
00:37:58,550 --> 00:37:55,520
questions the first is the 280 million

1071
00:38:00,470 --> 00:37:58,560
dollar price does that include the

1072
00:38:03,990 --> 00:38:00,480
minotaur 5 launcher

1073
00:38:05,910 --> 00:38:04,000
yes ma'am it does

1074
00:38:07,589 --> 00:38:05,920
thanks and um

1075
00:38:09,910 --> 00:38:07,599
i have another question about the rocket

1076
00:38:12,470 --> 00:38:09,920
um you know traditionally first flights

1077
00:38:15,030 --> 00:38:12,480
of new vehicles have a kind of spotty

1078
00:38:17,510 --> 00:38:15,040
track record and i'm just wondering from

1079
00:38:20,069 --> 00:38:17,520
your kind of internal assessments is

1080
00:38:22,550 --> 00:38:20,079
minotaur 5 in this configuration

1081
00:38:24,310 --> 00:38:22,560
considered a new rocket and i'll explain

1082
00:38:26,630 --> 00:38:24,320
maybe a little bit about

1083
00:38:29,030 --> 00:38:26,640
what the advantages and

1084
00:38:32,069 --> 00:38:29,040
disadvantages of picking this as the

1085
00:38:34,069 --> 00:38:32,079
launch vehicle for laddie thinks

1086
00:38:36,950 --> 00:38:34,079
sure this is doug voss i'll answer that

1087
00:38:38,870 --> 00:38:36,960
question so so the minotaur 5

1088
00:38:41,349 --> 00:38:38,880
vehicle was based on actually a

1089
00:38:43,030 --> 00:38:41,359
predecessor minotaur 4. so the first

1090
00:38:45,589 --> 00:38:43,040
four stages of the vehicle actually have

1091
00:38:47,589 --> 00:38:45,599
flight history on air force missions

1092
00:38:49,030 --> 00:38:47,599
the fifth stage is is the the new

1093
00:38:51,109 --> 00:38:49,040
element in the mission it's required to

1094
00:38:53,030 --> 00:38:51,119
get lati into orbit into the orbit it

1095
00:38:55,990 --> 00:38:53,040
needs to get to the moon

1096
00:38:57,270 --> 00:38:56,000
so the um the innovative um aspects of

1097
00:39:00,150 --> 00:38:57,280
this mission

1098
00:39:02,790 --> 00:39:00,160
um are are there in the minotaur five

1099
00:39:04,630 --> 00:39:02,800
fifth stage but they're in individually

1100
00:39:05,510 --> 00:39:04,640
none of the technologies are neat are

1101
00:39:07,430 --> 00:39:05,520
new

1102
00:39:09,589 --> 00:39:07,440
so there are a lot of proven concepts

1103
00:39:11,030 --> 00:39:09,599
folded into a new vehicle and it is true

1104
00:39:12,390 --> 00:39:11,040
that this upper stage hasn't flown

1105
00:39:14,390 --> 00:39:12,400
before

1106
00:39:16,390 --> 00:39:14,400
another good aspect of this vehicle is

1107
00:39:17,829 --> 00:39:16,400
that it's using existing motors so the

1108
00:39:20,069 --> 00:39:17,839
first three stages as i mentioned

1109
00:39:21,510 --> 00:39:20,079
earlier are peacekeeper motors so so

1110
00:39:25,109 --> 00:39:21,520
this aspect of the innovation is that

1111
00:39:27,430 --> 00:39:25,119
we're using a retired icbm assets

1112
00:39:29,750 --> 00:39:27,440
to fly a science mission and we're

1113
00:39:31,589 --> 00:39:29,760
stacking proven fourth and fifth stage

1114
00:39:33,829 --> 00:39:31,599
motors the star 48 is the fourth stage

1115
00:39:36,310 --> 00:39:33,839
and the star 37 is the fifth stage they

1116
00:39:38,710 --> 00:39:36,320
are themselves proven motors so in trade

1117
00:39:40,630 --> 00:39:38,720
for a lower cost mission you are in fact

1118
00:39:43,190 --> 00:39:40,640
accepting more risk with a new fifth

1119
00:39:45,829 --> 00:39:43,200
stage and that's the decision nasa's

1120
00:39:47,589 --> 00:39:45,839
made and accepted

1121
00:39:50,870 --> 00:39:47,599
we'll stay on the phone line here next

1122
00:39:52,710 --> 00:39:50,880
caller is ken kramer from universe today

1123
00:39:54,470 --> 00:39:52,720
ken

1124
00:39:55,990 --> 00:39:54,480
hi thanks for taking my question good

1125
00:39:58,470 --> 00:39:56,000
luck for everybody and i'm really

1126
00:40:00,550 --> 00:39:58,480
excited to be joining you soon for the

1127
00:40:01,750 --> 00:40:00,560
launch um over a couple of questions one

1128
00:40:03,510 --> 00:40:01,760
is about

1129
00:40:05,750 --> 00:40:03,520
the duration of the mission i guess it's

1130
00:40:07,030 --> 00:40:05,760
a hundred days i wonder if they're what

1131
00:40:09,990 --> 00:40:07,040
is the reason for that and is it

1132
00:40:12,310 --> 00:40:10,000
possible to extend it

1133
00:40:14,069 --> 00:40:12,320
this is butler i can answer that the the

1134
00:40:15,109 --> 00:40:14,079
total mission length is six months we

1135
00:40:17,190 --> 00:40:15,119
take about

1136
00:40:19,109 --> 00:40:17,200
uh a month to get to the moon we take

1137
00:40:20,950 --> 00:40:19,119
another month to do the commissioning

1138
00:40:24,069 --> 00:40:20,960
phase of the instruments and the laser

1139
00:40:26,710 --> 00:40:24,079
uh com experiment and then we drop down

1140
00:40:28,870 --> 00:40:26,720
the the length of the mission is is uh

1141
00:40:30,630 --> 00:40:28,880
uh limited by how much fuel we have i

1142
00:40:32,470 --> 00:40:30,640
mentioned that the moon has a very lumpy

1143
00:40:34,470 --> 00:40:32,480
gravity field what that means is that

1144
00:40:35,829 --> 00:40:34,480
you never get truly circular orbits

1145
00:40:38,069 --> 00:40:35,839
around the moon and the closer you get

1146
00:40:39,589 --> 00:40:38,079
to the moon the the more your orbit

1147
00:40:42,710 --> 00:40:39,599
varies up and down

1148
00:40:44,790 --> 00:40:42,720
and so to to to stay that low uh above

1149
00:40:47,510 --> 00:40:44,800
the lunar surface we expend a lot of

1150
00:40:49,829 --> 00:40:47,520
fuel and one of the limitations on how

1151
00:40:52,069 --> 00:40:49,839
long we can stay there is how much fuel

1152
00:40:53,349 --> 00:40:52,079
we carry so it's always an optimization

1153
00:40:55,910 --> 00:40:53,359
you can you can go with a bigger

1154
00:40:57,990 --> 00:40:55,920
spacecraft bigger fuel tanks uh to

1155
00:40:59,190 --> 00:40:58,000
extend your time above the lunar surface

1156
00:41:01,109 --> 00:40:59,200
but then you have to go to a bigger

1157
00:41:03,510 --> 00:41:01,119
launch vehicle and it's higher cost and

1158
00:41:04,309 --> 00:41:03,520
so it all uh it all daisy chains that

1159
00:41:06,470 --> 00:41:04,319
way

1160
00:41:09,109 --> 00:41:06,480
so this mission was designed at 100 days

1161
00:41:11,670 --> 00:41:09,119
because uh that's basically the amount

1162
00:41:13,510 --> 00:41:11,680
of fuel we can carry to get to the moon

1163
00:41:15,349 --> 00:41:13,520
moon drop down into this science orbit

1164
00:41:18,150 --> 00:41:15,359
and then uh and stay there there's

1165
00:41:19,030 --> 00:41:18,160
really not a a way to extend the mission

1166
00:41:21,030 --> 00:41:19,040
um

1167
00:41:23,750 --> 00:41:21,040
past that hundred days we'll go as long

1168
00:41:32,829 --> 00:41:23,760
as we have fuel available but ultimately

1169
00:41:37,030 --> 00:41:34,950
exciting uh for anyone who wants to

1170
00:41:38,950 --> 00:41:37,040
answer this maybe even john grunsfeld uh

1171
00:41:42,150 --> 00:41:38,960
when do you foresee using this on

1172
00:41:44,069 --> 00:41:42,160
another planetary mission

1173
00:41:45,349 --> 00:41:44,079
can uh some of your questions got uh cut

1174
00:41:48,470 --> 00:41:45,359
off can you repeat your question again

1175
00:41:52,950 --> 00:41:50,390
follow up on the laser communication

1176
00:41:54,550 --> 00:41:52,960
system i'd like to know um

1177
00:41:57,030 --> 00:41:54,560
when that would be when do you foresee

1178
00:42:01,670 --> 00:41:57,040
using this on another planetary mission

1179
00:42:04,710 --> 00:42:02,550
you know

1180
00:42:06,309 --> 00:42:04,720
as i said in my opening remarks i'm a

1181
00:42:08,550 --> 00:42:06,319
huge fan of laser econ and one of the

1182
00:42:10,470 --> 00:42:08,560
reasons is that as you go further out

1183
00:42:12,950 --> 00:42:10,480
into the solar system it's a much more

1184
00:42:15,030 --> 00:42:12,960
efficient way to get high bandwidth at

1185
00:42:16,630 --> 00:42:15,040
low power and so i'm very confident this

1186
00:42:18,710 --> 00:42:16,640
will be a successful experiment we'll

1187
00:42:21,030 --> 00:42:18,720
see in a very short time

1188
00:42:22,230 --> 00:42:21,040
so i'm very excited to to see and hear

1189
00:42:24,550 --> 00:42:22,240
the results

1190
00:42:26,309 --> 00:42:24,560
and it could be as soon as

1191
00:42:27,750 --> 00:42:26,319
you know our mars 2020 mission we've

1192
00:42:31,190 --> 00:42:27,760
already been having discussions about

1193
00:42:34,069 --> 00:42:31,200
could you do laser calm on a rover on

1194
00:42:35,030 --> 00:42:34,079
the surface of mars uh perhaps for a

1195
00:42:35,910 --> 00:42:35,040
future

1196
00:42:38,390 --> 00:42:35,920
uh

1197
00:42:40,069 --> 00:42:38,400
mars orbiting spacecraft versus all the

1198
00:42:42,069 --> 00:42:40,079
way back to earth or directly back to

1199
00:42:43,510 --> 00:42:42,079
earth uh but i think this is just the

1200
00:42:44,950 --> 00:42:43,520
beginning of

1201
00:42:47,670 --> 00:42:44,960
you know what will be

1202
00:42:50,309 --> 00:42:47,680
you know replacing some of the r radio

1203
00:42:51,910 --> 00:42:50,319
frequency com uh in the future i think

1204
00:42:53,910 --> 00:42:51,920
there's no question that as we send

1205
00:42:55,430 --> 00:42:53,920
humans further out into the solar system

1206
00:42:57,589 --> 00:42:55,440
certainly to mars

1207
00:42:59,990 --> 00:42:57,599
that if we want to have you know high

1208
00:43:03,589 --> 00:43:00,000
def 3d video we're going to have laser

1209
00:43:05,430 --> 00:43:03,599
com sending that information back

1210
00:43:07,990 --> 00:43:05,440
this is don cornwall from llcd i have a

1211
00:43:10,550 --> 00:43:08,000
follow-up as well there is actually a

1212
00:43:12,150 --> 00:43:10,560
follow-on funded nasa program to do

1213
00:43:14,950 --> 00:43:12,160
laser communications it's called the

1214
00:43:19,270 --> 00:43:14,960
laser communications relay demonstration

1215
00:43:20,230 --> 00:43:19,280
uh it's going to have a laser com

1216
00:43:22,150 --> 00:43:20,240
package

1217
00:43:24,870 --> 00:43:22,160
on a hosted payload a commercial

1218
00:43:26,630 --> 00:43:24,880
spacecraft and in geosynchronous orbit

1219
00:43:28,309 --> 00:43:26,640
and the idea there in addition to

1220
00:43:30,390 --> 00:43:28,319
demonstrating more technologies is to

1221
00:43:32,550 --> 00:43:30,400
run that from two to five years to

1222
00:43:34,390 --> 00:43:32,560
really build confidence in in laser com

1223
00:43:36,550 --> 00:43:34,400
we are a short mission here we hope to

1224
00:43:38,150 --> 00:43:36,560
demonstrate laser communications but we

1225
00:43:40,870 --> 00:43:38,160
really want to build a lot of confidence

1226
00:43:42,550 --> 00:43:40,880
over time as well

1227
00:43:45,270 --> 00:43:42,560
okay one more question for the phone

1228
00:43:47,030 --> 00:43:45,280
line before we go back to uh jason he uh

1229
00:43:48,870 --> 00:43:47,040
has a couple more questions thanks keep

1230
00:43:51,510 --> 00:43:48,880
sending those questions in at hashtag

1231
00:43:55,829 --> 00:43:51,520
ask nasa on the phone line marion cramer

1232
00:43:59,829 --> 00:43:57,910
hi uh thanks for taking my question yeah

1233
00:44:01,910 --> 00:43:59,839
i am wondering is there a particular

1234
00:44:04,390 --> 00:44:01,920
reason that the lady mission was chosen

1235
00:44:07,990 --> 00:44:04,400
to launch from wallops um i guess i'm

1236
00:44:09,270 --> 00:44:08,000
kind of asking why uh why now um and

1237
00:44:11,349 --> 00:44:09,280
this can be for anybody who'd like to

1238
00:44:15,349 --> 00:44:11,359
answer

1239
00:44:17,430 --> 00:44:15,359
question uh as doug mentioned the first

1240
00:44:21,109 --> 00:44:17,440
three stages of the minotaur five are

1241
00:44:23,670 --> 00:44:21,119
reconditioned uh icbm motors and the

1242
00:44:26,309 --> 00:44:23,680
treaty between the u.s and russia only

1243
00:44:29,349 --> 00:44:26,319
allows a few uh launch sites for these

1244
00:44:31,430 --> 00:44:29,359
uh for these uh ex-icbms

1245
00:44:33,430 --> 00:44:31,440
we can launch out of kodiak alaska or

1246
00:44:35,510 --> 00:44:33,440
vandenberg california or wallops island

1247
00:44:37,349 --> 00:44:35,520
virginia those are the three allowed

1248
00:44:39,430 --> 00:44:37,359
under the treaty

1249
00:44:41,670 --> 00:44:39,440
kodiak alaska and vandenberg are better

1250
00:44:44,309 --> 00:44:41,680
for polar earth orbits but if we want to

1251
00:44:46,550 --> 00:44:44,319
get to the moon we need to launch

1252
00:44:48,550 --> 00:44:46,560
eastward and so wallops island is the

1253
00:44:52,150 --> 00:44:48,560
ideal place to launch this launch

1254
00:44:56,390 --> 00:44:53,829
okay well we're gonna go back to jason

1255
00:44:58,550 --> 00:44:56,400
and jason i hear uh things are uh he's

1256
00:45:01,670 --> 00:44:58,560
stacking up there what you got for me

1257
00:45:03,829 --> 00:45:01,680
sure from twitter user emily lochdawala

1258
00:45:05,829 --> 00:45:03,839
are the moon and mercury's atmosphere

1259
00:45:10,069 --> 00:45:05,839
similar and will nasa laude help us

1260
00:45:11,430 --> 00:45:10,079
understand possibly mercury's exosphere

1261
00:45:13,670 --> 00:45:11,440
thanks emily that's a great question

1262
00:45:15,430 --> 00:45:13,680
this is sarah so yeah we've we've had

1263
00:45:16,470 --> 00:45:15,440
the messenger spacecraft around mercury

1264
00:45:18,230 --> 00:45:16,480
for a couple years now and we're

1265
00:45:20,309 --> 00:45:18,240
learning a lot of stuff about mercury's

1266
00:45:22,150 --> 00:45:20,319
exosphere and it turns out it is in many

1267
00:45:23,829 --> 00:45:22,160
ways similar to the lunar exosphere it

1268
00:45:25,910 --> 00:45:23,839
has a lot of the same

1269
00:45:27,510 --> 00:45:25,920
elements in it uh the interesting thing

1270
00:45:29,430 --> 00:45:27,520
about about mercury is that we don't

1271
00:45:30,870 --> 00:45:29,440
have any samples of mercury's surface so

1272
00:45:32,390 --> 00:45:30,880
we've actually been learning about what

1273
00:45:34,150 --> 00:45:32,400
the materials at the surface of mercury

1274
00:45:36,309 --> 00:45:34,160
are based on what is getting up into the

1275
00:45:37,750 --> 00:45:36,319
atmosphere the moon we actually already

1276
00:45:40,230 --> 00:45:37,760
know what the what the rocks are at the

1277
00:45:41,670 --> 00:45:40,240
surface but um being able to compare

1278
00:45:43,270 --> 00:45:41,680
what's at the surface versus what is in

1279
00:45:45,349 --> 00:45:43,280
the atmosphere at the moon will actually

1280
00:45:47,030 --> 00:45:45,359
help us work our way back to mercury and

1281
00:45:48,309 --> 00:45:47,040
understand the difference between what

1282
00:45:49,910 --> 00:45:48,319
we're seeing in the atmosphere and what

1283
00:45:51,349 --> 00:45:49,920
might be on the ground there so we're

1284
00:45:53,990 --> 00:45:51,359
actually going to learn about mercury

1285
00:45:56,230 --> 00:45:54,000
even from this lunar mission

1286
00:45:58,950 --> 00:45:56,240
jason wonderful another question from

1287
00:46:00,150 --> 00:45:58,960
twitter this is from user ryan thurman

1288
00:46:02,069 --> 00:46:00,160
is there anything the laser

1289
00:46:03,990 --> 00:46:02,079
communication system could be used for

1290
00:46:06,550 --> 00:46:04,000
besides space communications that can

1291
00:46:08,390 --> 00:46:06,560
improve everyday life

1292
00:46:09,349 --> 00:46:08,400
well that's an excellent question

1293
00:46:11,829 --> 00:46:09,359
uh

1294
00:46:13,430 --> 00:46:11,839
our system is actually based on the same

1295
00:46:15,750 --> 00:46:13,440
technology that we're all using in our

1296
00:46:17,349 --> 00:46:15,760
our fios fiber optic to the home and

1297
00:46:19,589 --> 00:46:17,359
between the big trunk lines so in some

1298
00:46:21,589 --> 00:46:19,599
ways this is a nasa spin in of of what's

1299
00:46:23,109 --> 00:46:21,599
going on commercially we've been able to

1300
00:46:24,069 --> 00:46:23,119
take advantage of that big commercial

1301
00:46:28,150 --> 00:46:24,079
base of

1302
00:46:30,790 --> 00:46:28,160
of uh many and inexpensive components

1303
00:46:32,390 --> 00:46:30,800
so the other the other uh possibilities

1304
00:46:34,470 --> 00:46:32,400
are there are commercial companies that

1305
00:46:36,710 --> 00:46:34,480
talk about using laser communications

1306
00:46:38,309 --> 00:46:36,720
for satellite networks around the earth

1307
00:46:39,510 --> 00:46:38,319
to deliver data around the earth so this

1308
00:46:41,030 --> 00:46:39,520
would help to

1309
00:46:44,230 --> 00:46:41,040
to make them feel more comfortable

1310
00:46:49,349 --> 00:46:47,030
one more sure one more from twitter user

1311
00:46:51,109 --> 00:46:49,359
isaac young once the link is established

1312
00:46:53,349 --> 00:46:51,119
is there no communication delay like

1313
00:46:55,589 --> 00:46:53,359
you'd get with a radio signal

1314
00:46:57,750 --> 00:46:55,599
so that's an also an excellent question

1315
00:46:59,270 --> 00:46:57,760
uh light waves and radio waves both

1316
00:47:00,470 --> 00:46:59,280
travel at the same speed they're both

1317
00:47:05,190 --> 00:47:00,480
the

1318
00:47:07,270 --> 00:47:05,200
thing electromagnetic waves what's

1319
00:47:10,069 --> 00:47:07,280
different here is that we can pack more

1320
00:47:13,750 --> 00:47:10,079
bits into any given second but the time

1321
00:47:15,670 --> 00:47:13,760
of flight will actually be the same

1322
00:47:17,430 --> 00:47:15,680
okay thank you jason and again keep

1323
00:47:19,829 --> 00:47:17,440
those calls coming in and if we can't

1324
00:47:22,150 --> 00:47:19,839
answer them during this broadcast we

1325
00:47:24,390 --> 00:47:22,160
will make sure that we get back to you

1326
00:47:27,109 --> 00:47:24,400
and again uh we're almost two weeks away

1327
00:47:28,230 --> 00:47:27,119
and uh a lot is going on uh so back to

1328
00:47:31,670 --> 00:47:28,240
the phone lines and i believe we have

1329
00:47:34,470 --> 00:47:31,680
marsha smith back with us marcia

1330
00:47:35,990 --> 00:47:34,480
yes uh sorry about the earlier attempt i

1331
00:47:38,790 --> 00:47:36,000
think i hit the wrong button

1332
00:47:43,030 --> 00:47:38,800
but anyway i'm curious about the

1333
00:47:44,870 --> 00:47:43,040
pristineness of the lunar atmosphere uh

1334
00:47:45,589 --> 00:47:44,880
i think sarah was talking earlier about

1335
00:47:47,190 --> 00:47:45,599
how

1336
00:47:49,430 --> 00:47:47,200
spacecraft easily disturbed the

1337
00:47:51,030 --> 00:47:49,440
atmosphere and so they want to do this

1338
00:47:53,270 --> 00:47:51,040
experiment now before there are even

1339
00:47:55,589 --> 00:47:53,280
more launches there but this was going

1340
00:47:58,150 --> 00:47:55,599
to impact the moon and grail impacted

1341
00:47:59,670 --> 00:47:58,160
the moon so it seems as though

1342
00:48:01,910 --> 00:47:59,680
these spacecraft are creating a lot of

1343
00:48:03,990 --> 00:48:01,920
dust themselves is that a problem are

1344
00:48:06,390 --> 00:48:04,000
you going to be able to tell what dust

1345
00:48:08,390 --> 00:48:06,400
was created by grail versus by comet

1346
00:48:09,990 --> 00:48:08,400
impacts does it matter

1347
00:48:12,630 --> 00:48:10,000
that's it that's a good question uh

1348
00:48:15,030 --> 00:48:12,640
marshall that the uh

1349
00:48:17,430 --> 00:48:15,040
an impact things impact the moon all the

1350
00:48:19,430 --> 00:48:17,440
time so these small impact crater small

1351
00:48:20,950 --> 00:48:19,440
spacecraft impacting the moon don't do a

1352
00:48:23,030 --> 00:48:20,960
lot i mean something the size of lady

1353
00:48:24,710 --> 00:48:23,040
hits the moon like once a month so the

1354
00:48:26,630 --> 00:48:24,720
moon's not really noticing these things

1355
00:48:28,470 --> 00:48:26,640
but when spacecrafts land they have a

1356
00:48:30,950 --> 00:48:28,480
lot of fuel that they use as they're

1357
00:48:33,270 --> 00:48:30,960
landing and that actually can add a lot

1358
00:48:35,430 --> 00:48:33,280
a lot of material to the atmosphere so

1359
00:48:37,349 --> 00:48:35,440
because the atmosphere is so thin i mean

1360
00:48:39,109 --> 00:48:37,359
it's it's it becomes a significant

1361
00:48:41,270 --> 00:48:39,119
component of the atmosphere when you

1362
00:48:42,790 --> 00:48:41,280
land something on the moon so yes we

1363
00:48:44,390 --> 00:48:42,800
have we have impacted into the moon

1364
00:48:46,309 --> 00:48:44,400
right recently but we have not landed

1365
00:48:48,069 --> 00:48:46,319
there in quite a while so a landing like

1366
00:48:50,630 --> 00:48:48,079
that will will disturb the atmosphere

1367
00:48:52,870 --> 00:48:50,640
for for several months whereas an impact

1368
00:48:56,309 --> 00:48:52,880
is is just part of the usual processes

1369
00:49:01,990 --> 00:48:59,349
marcia did you have a follow-up

1370
00:49:05,510 --> 00:49:02,000
is this the last best chance to study a

1371
00:49:07,349 --> 00:49:05,520
more or less pristine lunar atmosphere

1372
00:49:09,190 --> 00:49:07,359
like i guess that depends on the rates

1373
00:49:10,950 --> 00:49:09,200
of when we start landing back on the

1374
00:49:12,710 --> 00:49:10,960
moon again but as i said there are a

1375
00:49:14,390 --> 00:49:12,720
number of countries and a number of

1376
00:49:16,630 --> 00:49:14,400
private companies the google lunar x

1377
00:49:18,710 --> 00:49:16,640
prize folks that that are intending on

1378
00:49:21,349 --> 00:49:18,720
on landing things on the moon um several

1379
00:49:22,790 --> 00:49:21,359
things over the next several years so it

1380
00:49:26,150 --> 00:49:22,800
seems like it is going to be a busy time

1381
00:49:27,430 --> 00:49:26,160
for the moon over the next decade or so

1382
00:49:29,670 --> 00:49:27,440
okay what we're going to do we've got a

1383
00:49:31,990 --> 00:49:29,680
few minutes left and uh you know we're

1384
00:49:33,349 --> 00:49:32,000
setting the stage here two weeks away

1385
00:49:36,470 --> 00:49:33,359
on the landing mission i'm going to ask

1386
00:49:37,829 --> 00:49:36,480
the panelists uh individually um

1387
00:49:39,510 --> 00:49:37,839
what's going through your mind now

1388
00:49:41,750 --> 00:49:39,520
you're two weeks away how do you feel

1389
00:49:43,109 --> 00:49:41,760
about this mission and we'll start with

1390
00:49:44,870 --> 00:49:43,119
you john

1391
00:49:46,870 --> 00:49:44,880
i'm tremendously excited we've been

1392
00:49:49,030 --> 00:49:46,880
working on this for about seven years

1393
00:49:50,950 --> 00:49:49,040
the team's just grown and grown in their

1394
00:49:52,630 --> 00:49:50,960
ability to pull it all together there

1395
00:49:54,790 --> 00:49:52,640
were a number of moments when we weren't

1396
00:49:56,069 --> 00:49:54,800
sure we'd you know be here today for all

1397
00:49:58,470 --> 00:49:56,079
kinds of reasons

1398
00:50:00,390 --> 00:49:58,480
things happen but everything has worked

1399
00:50:02,710 --> 00:50:00,400
out the team has done an excellent

1400
00:50:05,670 --> 00:50:02,720
excellent job of building the spacecraft

1401
00:50:08,390 --> 00:50:05,680
on time all the testing has gone great

1402
00:50:10,150 --> 00:50:08,400
we haven't had any major setbacks

1403
00:50:11,670 --> 00:50:10,160
we're here we're ready and we all just

1404
00:50:13,910 --> 00:50:11,680
can't wait to get everything turned on

1405
00:50:16,790 --> 00:50:13,920
and working butler

1406
00:50:18,549 --> 00:50:16,800
um i'm very excited for this mission uh

1407
00:50:19,910 --> 00:50:18,559
and the the team is very excited you've

1408
00:50:22,870 --> 00:50:19,920
had a lot of people that have been

1409
00:50:24,950 --> 00:50:22,880
working this uh not just for the the

1410
00:50:27,829 --> 00:50:24,960
lady phase uh for the last five years

1411
00:50:29,829 --> 00:50:27,839
but but also before that to to prove out

1412
00:50:31,990 --> 00:50:29,839
this uh bus design and prototype this

1413
00:50:33,829 --> 00:50:32,000
bus design so you've got a lot of people

1414
00:50:36,950 --> 00:50:33,839
that have spent a lot of uh a lot of

1415
00:50:38,870 --> 00:50:36,960
sweat equity uh in this um once we

1416
00:50:40,790 --> 00:50:38,880
closed it into the fairing yesterday we

1417
00:50:42,309 --> 00:50:40,800
were very excited there's a little sad

1418
00:50:45,190 --> 00:50:42,319
too because that's the last time we'll

1419
00:50:46,630 --> 00:50:45,200
ever see the spacecraft again

1420
00:50:47,430 --> 00:50:46,640
since it won't be coming back from the

1421
00:50:49,270 --> 00:50:47,440
moon

1422
00:50:51,270 --> 00:50:49,280
so you have a lot of people with their

1423
00:50:53,990 --> 00:50:51,280
fingers crossed really

1424
00:50:56,069 --> 00:50:54,000
hoping for the best and excited to see

1425
00:50:57,030 --> 00:50:56,079
uh see their baby fly

1426
00:50:58,950 --> 00:50:57,040
sarah

1427
00:51:00,390 --> 00:50:58,960
this is my first mission i'm i am really

1428
00:51:02,390 --> 00:51:00,400
excited about it and it's been such a

1429
00:51:03,910 --> 00:51:02,400
such a joy watching the science team

1430
00:51:05,510 --> 00:51:03,920
come together and they've you know this

1431
00:51:06,870 --> 00:51:05,520
is a short mission and they know they

1432
00:51:08,309 --> 00:51:06,880
have to get their hit the ground running

1433
00:51:09,829 --> 00:51:08,319
and they have been so fantastic in

1434
00:51:11,510 --> 00:51:09,839
getting themselves prepared and ready to

1435
00:51:14,069 --> 00:51:11,520
go for this mission it's been really

1436
00:51:15,990 --> 00:51:14,079
really exciting to watch

1437
00:51:17,829 --> 00:51:16,000
well this is uh nasa's first real

1438
00:51:19,750 --> 00:51:17,839
opportunity to fly a dedicated laser

1439
00:51:21,349 --> 00:51:19,760
communication system and as i kind of

1440
00:51:22,950 --> 00:51:21,359
alluded to before

1441
00:51:25,349 --> 00:51:22,960
you know on the earth here we've been

1442
00:51:26,950 --> 00:51:25,359
using laser communications and our fiber

1443
00:51:28,870 --> 00:51:26,960
optics to power our internet and

1444
00:51:31,030 --> 00:51:28,880
everything else for the last couple of

1445
00:51:33,109 --> 00:51:31,040
decades and and nasa has really been

1446
00:51:34,790 --> 00:51:33,119
wanting to take that same technological

1447
00:51:36,790 --> 00:51:34,800
leap and put it into space and this is

1448
00:51:39,910 --> 00:51:36,800
our chance to do that so we're very

1449
00:51:41,589 --> 00:51:39,920
excited to get the opportunity

1450
00:51:43,030 --> 00:51:41,599
from the perspective of wallops and our

1451
00:51:45,430 --> 00:51:43,040
air force partners with the launch

1452
00:51:48,710 --> 00:51:45,440
vehicle it's been very exciting to have

1453
00:51:50,230 --> 00:51:48,720
a nasa spacecraft handed over for the

1454
00:51:52,150 --> 00:51:50,240
launch vehicle to take on to orbit

1455
00:51:54,069 --> 00:51:52,160
wallops flight facility is very excited

1456
00:51:55,750 --> 00:51:54,079
as as nasa's launch range

1457
00:51:57,430 --> 00:51:55,760
to be sending the spacecraft to the moon

1458
00:51:59,190 --> 00:51:57,440
so it's a very exciting time a very busy

1459
00:52:01,589 --> 00:51:59,200
time right now in launch preparations

1460
00:52:02,630 --> 00:52:01,599
but they've been going very well and so

1461
00:52:05,109 --> 00:52:02,640
we're looking forward to a very

1462
00:52:07,030 --> 00:52:05,119
successful launch and flight operation

1463
00:52:08,549 --> 00:52:07,040
for laddie

1464
00:52:11,829 --> 00:52:08,559
well ladies and gentlemen the stage is

1465
00:52:13,750 --> 00:52:11,839
set the team is ready they're excited

1466
00:52:15,190 --> 00:52:13,760
john grunsfeld loves the mission we all

1467
00:52:19,030 --> 00:52:15,200
love the mission

1468
00:52:23,109 --> 00:52:19,040
and mark your calendar september 6

1469
00:52:25,670 --> 00:52:23,119
friday night 11 27 pm eastern daylight

1470
00:52:26,470 --> 00:52:25,680
time a night launch if the weather's

1471
00:52:29,030 --> 00:52:26,480
right

1472
00:52:30,950 --> 00:52:29,040
as you heard it will be seen not just on

1473
00:52:32,710 --> 00:52:30,960
the east coast but

1474
00:52:33,990 --> 00:52:32,720
up to maine's

1475
00:52:37,109 --> 00:52:34,000
to the south

1476
00:52:41,950 --> 00:52:37,119
west virginia a good show friday night

1477
00:52:45,109 --> 00:52:41,960
market date again join us again on

1478
00:52:47,589 --> 00:52:45,119
www.nasa.gov lady for the latest updates

1479
00:52:50,549 --> 00:52:47,599
ladies september 6 a mission of many