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nasa's glory mission offers the

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potential to dazzle us with discoveries

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of our home planet's climate

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with specialized sensors and orbiting on

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a path that covers all of the earth the

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glory satellite is to tell researchers

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how much of the sun's energy the planet

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absorbs or uses and how much gets

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reflected back out into space

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about the size of a refrigerator the

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glory spacecraft will look for those

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answers in the form of aerosols in the

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earth's atmosphere

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particles of solids and liquids that

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float high in the air some reaching the

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stratosphere are what glory will detect

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and map

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the sensors are also expected to reveal

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how long the particles stay in the

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atmosphere

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glory will fly two instruments that will

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help us understand

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first of all the aerosols interaction

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between the earth's atmosphere and then

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the second instrument called tim total

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irradiance monitor will help us

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understand the sun's interaction with

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our

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upper atmosphere

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the answers are expected to be a key

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piece of the puzzle to figuring out the

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world's prospects for climate change in

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the future

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what they're trying to do is define the

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size of it

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where it resides

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what are its peculiarities is it

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something that man is doing is it

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something that the earth does naturally

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is it something that the sun interacts

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and causes

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those kind of things

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glory also marks the return to flight

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for the taurus xl rocket a relatively

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small booster nasa would like to use to

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launch future satellites too

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based on existing launchers orbital

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sciences designed the taurus xl to meet

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the needs of small satellites heading

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into earth orbit

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it has four stages and birds a solid

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fuel similar to the propellants used by

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the space shuttle solid rocket boosters

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the stage zero of the taurus xl traces

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its heritage back to the peacekeeper

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missile

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the other three stages are taken from

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the design of the pegasus booster but

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without the signature wing

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the vehicle

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is very similar to the pegasus xl

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vehicle minus to stage zero and the

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first stage doesn't have a wing a taurus

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xl was launched in february 2009 to lift

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the orbiting carbon observatory

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but the payload fairing protecting the

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spacecraft during the first part of the

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launch did not separate as it was

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supposed to the spacecraft did not reach

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orbit

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lori is going to do some fantastic

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stuff as far as mapping out

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aerosols in the atmosphere it's also a

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groundbreaker in that this is the first

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flight after a failure

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of the taurus xl vehicle and so we're

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excited to be

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doing this glory just happens to be the

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science that we're taking up with us

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this time

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when the orbiting carbon observatory

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mission did not achieve orbit the launch

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team set out to determine what happened

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a task made more difficult by the fact

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that they did not have the failed pieces

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to examine

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instead they had to use the extensive

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data or telemetry they received during

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the climb into space with extensive

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fault trees to best figure out the

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likely cause

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the redesign work from finding a

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probable cause to fixing it has been

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intense

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nasa's launch services program based at

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kennedy space center in florida operates

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launches from several parts of the world

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so spacecraft can go into different

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kinds of orbits

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this time glory required what's called a

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polar or sun synchronous orbit to

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fulfill its studies of earth's

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atmosphere

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reaching that orbit means using the

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vandenberg air force-based california

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launch site on the west coast

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glory was designed to join

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the what's called the a-train or

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afternoon train of irv observing

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satellites

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it is necessary to launch from

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vandenberg to be able to go into that's

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the sun synchronous orbit that orbit

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cannot be achieved

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efficiently by launching out of the east

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coast for example

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the glory spacecraft is to become the

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fifth satellite of the eight planned to

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make up the a-train constellation

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taking readings at the same time on

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different aspects of the atmosphere

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glory's observations are expected to add

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more information to the growing database

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of knowledge about our own planet and

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how it's affected by the sun and other

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influences it's taken a little longer