Questions tagged [astronauts]

Questions regarding people present on spacecraft or space stations.

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19
votes
2answers
2k views

Do astronauts on board the ISS have a backup spacesuit?

Do astronauts on the International Space Station have a backup spacesuit with them so that they could use it in case of any malfunction with one of the spacesuits? If so, how many spacesuits does ...
23
votes
1answer
8k views

Do ISS astronauts have to be conversant in both English and Russian?

I've noticed that some of the American astronauts on the ISS can speak (at least a smattering of) Russian and similarly, some of the Russian cosmonauts are fluent in English. Is such bilinguality a ...
14
votes
1answer
5k views

If I want to be an astronaut pilot, what career should I start?

What kind of career should I start if I want to be an astronaut pilot? First astronauts were military aircraft pilots. Since those days, automatic flying was present in the spacecraft so that someone ...
8
votes
2answers
4k views

How do astronauts drink or eat in space?

As there is zero gravity in space, how do astronauts drink liquid from a container? Do they suck the liquid or is there any mechanism for that? Are there any changes in oesophagus?
14
votes
1answer
1k views

Do the majority of astronauts experience space sickness while adapting to micro-gravitational conditions?

Do the majority of astronauts (and cosmonauts) experience nausea, or symptoms of space sickness while adapting to micro-gravitational conditions? How severe are their symptoms and how much they vary ...
4
votes
1answer
474 views

Do astronauts experience any genetic changes?

Staying in space is different from staying on Earth. When astronauts return to Earth from orbit, they usually suffer from muscle loss. Are there any genetic (abnormal) changes in their cells or in ...
9
votes
1answer
2k views

Was Gordon Cooper the last man to fly a whole mission in space alone?

Movie The Right Stuff (1983) claims at the end that Gordon Cooper was the last man to fly alone in space (if I remember it correctly and dubbing is right). Beside that, Wikipedia also states that he ...
25
votes
4answers
6k views

What is the largest number of humans in space at the same time and what vessels were they on when it happened?

What is the largest number of human beings in space at the same time, and what vessels were they on when it happened?
11
votes
2answers
339 views

How are the symptoms of long-term exposure to microgravity similar to those of bedridden patients?

A large number of symptoms of long duration stays in microgravity seem to be associated with the headward shift of organs and blood. I've always wondered, couldn't these symptoms also happen in ...
9
votes
2answers
2k views

Is it possible to prevent muscular atrophy in microgravity with proper exercises?

Is it possible to prevent muscular atrophy in microgravity (space station, spacecraft etc.) by proper exercises? Urban dwellers here on Earth can train/develop arm muscles to the equivalent of their ...
24
votes
2answers
3k views

What medical conditions can impede someone from going into space?

Are there any physical, mental, or health-related medical conditions that could permanently exclude someone from going into space? Do the criteria differ from one country's (government sponsored or ...

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