Ask Astronaut Jeff Williams: Post a Video Response

Astronaut Jeff Williams, aboard the International Space Station 220 miles above Earth, is taking your questions.

Post a video response with your question. Williams' schedule will not allow him to answer many questions, but he will attempt to answer a few each week.

Category:

Science & Technology

Tags:

• nasa
• space
• international space station
• astronaut
• questions

[iammrfrank]

I have a quick question, on one of the previous trips into space (further out from simply orbit) some astronauts said the radiation was dense enough to see with their eyes closed, is orbit far enough out to see the radiation while your sleeping? Or are you still too far in the earth's protective magnetic field? (I know it says video response.. but it's my opinion that I'm a nerd and most people following probably are also, and we don't like cameras...)

[kazelieast]

hes in the International Space Station which is in space

[hardstyle905]

@chorioretinitis And not to mention the cold...

[patachu666]

@Shazee083

you get into a rocket/ship/whatever that takes you into space. then you become an astronaut.

[linghun]

Do you the stars on the dark side with your naked eyes?

[thegreatcb7]

i got a good question..: HOW MANY SPACE SHIPS DO YOU SEE FLYING AROUND EVERYDAY?!

[Shazee083]

how you become an astronaut

so you need an medical degree and an engineering degree and i have do a research

[hisssyffffit]

I see lots of questions, but no answers?

[kirza94]

just guessing but did he record this is Kibo( JEM PM ) if so yeay im getting smarter :)

[chorioretinitis]

@isokessu Mars has a surfare pressure of about 1 kPa (or about 0.15 psi, or about 1% of our sea level pressure), so it's basically hard vacuum. You'd need a pretty regular space suit, preferably with dust-hardened joints. You could survive for about 10 seconds in vacuum without any protective gear without suffering any major damage, after that you'd lose consciousness and soon die. And you should exhale and *not* hold your breath, as the overpressure of air in your lungs would tear them up.

[isokessu]

Do you or somebody know that is it possible to be in mars for hours or days with just some plastic suit and oxygen tank (what could be pretty big because it wouldn't be so heavy like in earth) or is there so high- or low-pressure that you need some crazy space suit? :D and could you live there for second or two without anything else but normal clothes and holding breath O_o I mean really what would happen?