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in space everything has

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no gravity so you develop say a tissue

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like a kidney your science classes or

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liver tissue and then you can test

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different vaccines or metabolites drugs

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on that tissue in space much more easily

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than here at home because here at home

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when you test those cells they're flat

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but they grow in space 3d because

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what are some of the experience that in

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astrophysics that nasa is doing right

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now

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what are some of the experiments in

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astrophysics the

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astrophysics is of course extremely

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broad hubble is the most known of all

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our uh space telescopes but right now

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i'd say some of the most exciting

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research is coming from kepler kepler

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was launched just two years ago the main

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thing we are doing is looking for other

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we call them fresh outs

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and put you through the paces at nasa i

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didn't come to nasa till i was 35 though

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so you can have

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other careers and come back i came after

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that's a good question okay so we have

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flown just over 400 people in space

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total total um

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astronauts and cosmonauts there's more

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astronauts than anyone else right now we

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have about 70 active astronauts in the

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astronaut course so they're not all

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famous like

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john glenn and

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james webb who is not an astronaut but

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um

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yes over 400 people nearly 500 have

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flown in space

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president say we're going next

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where's where's nasa going next

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uh

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i feel bad i'm not hitting any more

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heart on the end right there as an

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engineer or as i did more on the

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these

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kids who have dedicated themselves to

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science 25

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and so nasa is developing this rocket

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the space launch system actually uh a