WEBVTT FILE

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[Music}

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[Ringing]

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[Music]

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Preparations for the last servicing
mission to the Hubble Space Telescope

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are well underway at several NASA facilities.
Almost all 22 thousand pounds of

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Service Mission 4 hardware is at some
stage of integration and test at the

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Goddard Space Flight Center in Maryland.
This includes, new gyros, batteries, fine

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guidance sensor, astronaut tools, support hardware,
a new docking ring, the carrier

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systems and 2 new Hubble science instruments.
The Wide Field Camera 3

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begins its 3rd and final thermal vacuum
test shortly, where it will

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experience the harshness of space inside a large
simulator for several weeks.

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The Service Mission 4 astronauts come
to Goddard to practice installing the

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camera into the Hubble Space Telescope
high-fidelity mechanical simulator as

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well as the carrier systems that will
transport the camera to orbit onboard

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the space shuttle. The Wide Field Camera 3
will be Hubble's most advanced camera,

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increasing it's discovery efficiency by a factor of 5.
The Cosmic Origins

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Spectrograph, a point-source ultra-violet
spectrograph, is ready for

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flight. Astronauts practice installing COS
into the high-fidelity mechanical

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simulator and the carrier systems.

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[Music}

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At Goddard, engineers and astronauts
work together developing tools and techniques

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to resurrect 2 malfunctioning science
instruments currently on orbit inside

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Hubble. Both the Space Telescope Imaging
Spectrograph and the Advanced Camera for

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Surveys suffered power supply failures.
This is the first time a repair like

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this has ever been done on orbit. One of
NASA's premier training facilities at

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the Johnson Space Center in Houston,
is the Neutral Buoyancy Laboratory. In this

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6.2 million gallon swimming pool. Goddard
engineers work along side the astronauts

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as they train for the mission.

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[Music]

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Scientists and engineers
are excited about flying

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this last servicing mission to the
Hubble Space Telescope and, we'll update

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you periodically as preparations continue.

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[Music}