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[Music]

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and we have liftoff after the first

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servicing mission to the hubble space

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telescope

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[Applause]

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[Music]

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hubble amazed us with its ability to see

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but hubble can also see things that our

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eyes don't naturally see even if we were

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up close

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we would actually see something that

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looks more like this

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but how can we see this then when our

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eyes would actually see something that

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mostly resembles that

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and the answer to that question lies

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within servicing mission two

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[Applause]

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[Music]

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liftoff discovery now on its way

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[Music]

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when hubble was first launched into

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orbit much of the technology that

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that's what makes hubble so unique

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over its lifetime hubble was able to be

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serviced five times

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allowing us to fix parts that may have

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been worn out and add new instruments

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that have been specifically crafted to

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now up until servicing mission 2 in 1997

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the hubble space telescope could only

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capture light within the visible to

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ultraviolet spectrum

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and even though our eyes can only see

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within the visible range nasa was after

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by widening the range of light that

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hubble is able to capture astronomers

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could see into distinctly different

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this is because a picture is worth a

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thousand words but the light that formed

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that picture also has a story to tell

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and here's where spectroscopy comes into

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the narrative of that story

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spectroscopy is a technique that

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scientists use to separate light into

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its component colors or wavelengths

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and by separating light into its

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components we are able to unpack greater

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so nasa constructed the necessary

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mechanisms needed to capture a wider

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range of light

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they spent years coming over every

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detail of these new instruments and

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trained a team of astronauts the

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techniques needed to install them

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properly into hubble

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[Music]

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the purpose of today is for the

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crew of the second servicing mission for

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hubble to get familiar with installing

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a science instrument into the telescope

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after the proper preparation of the new

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instruments all the components of

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servicing mission 2 were ready for

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ignition and liftoff discovery now on

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its way to service nasa's hubble space

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telescope

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aboard discovery the is now in a heads

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down position on course for a 28.5

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good morning discovery it's today to go

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hey good morning chris we're ready to do

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that

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during this mission the team of seven

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astronauts installed the space telescope

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imaging spectrograph or stis to hubble

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allowing us to separate ultraviolet and

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visible light into its components giving

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scientists critical diagnostic

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information about an object's

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composition temperature motion and other

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physical and chemical properties

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also as this hubble was able to capture

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in a single exposure a spectral region

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30 times wider than previous

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spectrographs

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now questions surrounding the study of

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massive black holes stellar flares the

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evolution of the universe and

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distribution of matter could now be

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studied in fuller view

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but nasa did not stop there

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they also installed the near-infrared

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camera and multi-object spectrometer or

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nikmas which allowed hubble to see into

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the universe by infrared light

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we can now tackle questions like how do

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stars form how many stars have planetary

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systems or

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how do galaxies form and evolve

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additionally the astronauts of servicing

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mission 2 refurbished defined guidance

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sensor and gyroscopes all of which help

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point the telescope they repaired

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failing thermal blankets which regulate

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hubble's temperature added a better data

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recorder and data interface unit which

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all help manage hubble's data intake and

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replace the electronics that drive

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now more than ever we were able to see

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into the universe in a rainbow of colors

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that were only a dream in the early

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servicing mission 2 went down in the

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history books by making the hubble space

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telescope more scientifically powerful

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proof that you all have done a great job

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so many thanks to all the people in all

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the other ground locations supporting

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this mission before we understand the

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sacrifices you made to make sure this