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a look here a live view from the

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international space station the complex

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uh continuing to perform well the

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vehicle is traveling at an altitude of

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418 kilometers or 226 nautical miles

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over the earth at this vantage point you

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can see it's a spectacular view of the

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earth and this is actually an

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opportunity for many researchers around

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the world who use the imagery and still

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photos that are captured by

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the astronauts on board for their

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research purposes

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as part of that here at the johnson

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space center we have a team of

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researchers who help to

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catalog and keep track of all those

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images as well as identify valuable

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photo opportunities for the crew and one

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of those team members is melissa dawson

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again joining us from the jsc earth

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observation team thanks for joining us

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melissa thanks for having me

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so it's april which is um highlighted in

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a lot by earth day which is april 22nd

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and

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a lot of people credit some of the very

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first images of earth with helping to

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trigger that appreciation for our planet

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can you tell us a little bit about that

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uh yeah we in earth ops have been

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looking at astronaut photography for

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decades now and we can learn many things

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just from looking at the earth changes

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over those years we study things from

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changes in the lake bed to coral reefs

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glaciers over time and we can really

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learn a lot from the cruise photography

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so it's perfect that your team has

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actually launched a website for the

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month of april

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to highlight some of the crew earth

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observation photos and its connection to

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research on the ground can you tell us a

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little bit about this new website sure

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starting last year we created special

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features on our website for earth day

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and this year we're featuring an earth

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month webpage that we update weekly

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on the website users can read about what

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ceo has been up to

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new subsets

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for our main gateway astronaut

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photography website and some of our

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favorite astronaut images over time

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a few things we have now are

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our favorite astronaut tweeted image of

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the week

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i know that commander hadfield and tom

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mershberg have

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tweeted quite a few images so we pick

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from those imagery images from their

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tweeted accounts and then

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a favorite astronaut image of the week

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that they have taken just that week

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alone

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and

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favorite earth image

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that astronauts have taken

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of dynamic events

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in history

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yeah i'm curious um definitely commander

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chris hadfield's twitter feed and tom

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marshburn they've just been really

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immensely popular have you guys seen a

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spike and has social media impacted the

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the use of these images and getting the

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public engaged oh definitely um

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we we love looking at chris's uh tweeted

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images because he does tweet quite a few

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images every day and so we have a lot to

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choose from

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and so

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you know they've been very active

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up there not just with

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our target requests when we send them up

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every day but on their own they have a

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lot of really great images that come

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down and so we have a lot to choose from

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and social media has definitely played a

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huge part

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in

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astronaut photography and with ceo

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and just particularly with twitter how

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people can

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tweet different images and retweet

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things and it's really we've seen a

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and i think a lot of people don't know

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that they can actually access the

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repository of all those many thousands

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of photos and they can they can search

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and even get photos of their own

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hometown or maybe where they were born

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and see those images from space

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yes we have a very large database like

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you said with thousands and thousands of

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images that the crew has taken from

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space over the years

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we

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people can do technical searches for a

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hometown or

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different features on the earth or we

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even have more photographs of things

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that have not yet been catalogued and

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that's kind of actually a little segue

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into we what we've created called the

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image detective website

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where the user can go through our very

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large database and start to

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catalog or geolocate things themselves

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and so we can kind of add some more

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value to these images that have not yet

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have any geolocation or features

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identified for them

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yeah walk us through that new that new

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feature this is something that the

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public can sign up for it's really easy

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but can you step us through how that

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works for for folks who might be

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interested in participating in this

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image detective feature absolutely um

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before you can start actually becoming

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an image detective you have to earn your

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badge and so you go on and you take a

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you go through a small tutorial and you

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can

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earn your badge by placing or

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geolocating an astronaut photograph

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against a map

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and

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once you do that you find the the image

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location you can add cloud cover

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percentage and if you would like you can

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add features and submit that image for

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approval and once you

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have that image approved and make your

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credentials which is your username and

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your password

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you will get a badge and you can start

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to locate

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well i don't even know how many we have

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online right now probably several

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hundred at least

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so we need all those located so image

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detectives welcome

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right there's so so many photos now and

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um and and we should know as popular as

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it is to see these photos

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from space especially of cities and

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locations that mean something to us

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they're really more than pretty pictures

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they are used by researchers around the

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world for lots of different

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analysis and studies and things that

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help us can you talk a little bit about

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that how many do you have any sense of

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the scope of how many researchers use

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these images

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at the moment we have a little over 30

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collaborators from about 20 different

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institutions all over the world

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they can make a particular request for a

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science site somewhere on earth

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and on a daily basis we will analyze the

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crew's orbit tracks to see if they'll be

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flying over any of our over 300 science

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sites

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and if they are flying over it and the

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the weather is permitting we'll have

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them take imagery of that site for us

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and we have a great deal

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of imagery throughout the years that

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we've been able to forward onto our

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collaborators and they've done great

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research projects with these

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images and it's not just

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you know phds that do this it's also

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classrooms so it really varies on who

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can use this imagery and what they can

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do with it

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well thanks so much for joining us

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melissa we definitely want to encourage

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people to visit that website it's a

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really long url but i do want to

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encourage folks to go to our main nasa

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webpage at

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www.nasa.gov and we do have a special

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earth month website and link that's got

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all sorts of earth day relevant

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applications and features

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from nasa of research that's being done

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so that's probably the easiest way to

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access it and like you mentioned the

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image detective feature program which is

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maybe easiest found by just

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doing an internet search for image

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detective nasa and that will bring you

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to that site as well so lots of

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different ways for the public to get

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more involved and see some of these

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images and be able to enjoy some of the

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valuable photography that's captured