Questions tagged [spacesuits]

Questions regarding the spacesuits that astronauts wear whilst in space

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12
votes
1answer
1k views

How did they test early spacesuits in a vacuum?

Early spacesuits (like the SK-1 or the Mark IV) were designed before anyone had gone into space. How did they test that the suits would perform well in a vacuum? Did they send them into space with ...
11
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2answers
20k views

How much protection do space EVA suits offer against radiation for the wearer?

How much protection do space EVA suits offer against radiation? Do they shield certain kinds of radiation more than others? Any idea how many sieverts an individual is exposed to wearing a space ...
4
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1answer
107 views

Can PLSS in atmosphere use enriched oxygen?

Does Mars space suit have to be pressurized? makes it pretty clear the atmospheric pressure on Mars is a miniscule fraction of Earth's own. In it's turn Wikipedia writes to say that the atmosphere ...
14
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1answer
740 views

Could helmet-fogging occur on Mars, or on any other celestial body with an atmosphere?

When I drive in cold/wet weather the state of the roads is cause for concern. But more worrying is the risk of the wind-screen fogging over when least it should. Space/Earth orbit is a different ...
9
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2answers
799 views

What progress has there been in the design of modern spacesuits?

In the early 90's I remember seeing a program where they were discussion new designs in space suits that would be more flexible and allow for less restrictive movements of the occupant. These suits ...
14
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1answer
1k views

Could an EVA Suit meant for Mars be used for EVA on another celestial, or vice-versa?

A quick follow-up to What is the power requirement of a spacesuit? The Apollo 11 crew were in a vacuum out on Luna; their space-suits fulfilled the purpose of a basic space-suit about which Wikipedia ...
16
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1answer
2k views

What is the power requirement of a spacesuit?

A spacesuit is a fairly easily identifiable piece of equipment in spacecraft. It's purpose is to keep it's interior distinct from the exterior in terms of the pressure, and temperature differentials ...
11
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2answers
1k views

Time to prepare for EVA out of ISS

How much time is needed to an astronaut on ISS to prepare herself for an EVA? Is this time so much different from time needed during Apollo missions?
19
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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 ...
16
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2answers
2k views

What was the source of the fluid in Luca Parmitano's suit?

There has been a lot of press (example) and commentary about the near drowning in space of Italian astronaut Luca Parmitano on July 16, 2013. We have a question Would the blast clearing technique ...
21
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3answers
23k views

Puncturing space suit during EVA. What would happen?

What would happen, if the space suit of a spacewalking crew was punctured during the extravehicular activity (EVA)? What are the chances of this happening? Has this already happened to anyone in the ...
24
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3answers
14k views

Does Mars space suit have to be pressurized?

Various sci-fi movies treat Mars atmosphere differently, anywhere between "you just need oxygen rebreather" and "Your eyes will pop out and your head will explode". Meanwhile, I haven't seen any solid ...
51
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5answers
5k views

How possible are 'space jumps'?

Have you seen the first of the two new Star Trek movies? Kirk (Chris Pine), Sulu (John Cho) and a red shirt perform something really awesome in this film: They jump from space down to a planet, ...
13
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2answers
768 views

What level of protection is required for spacewalkers?

If you're going on a space walk, you need to be shielded from cosmic rays, temperature, and possibly other issues. What components of cosmic rays are dangerous? What sort of protection is used to ...
20
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2answers
9k views

How would an astronaut's hand react to a hard vacuum?

What would happen if an astronaut took his/her glove off in space but had the rest of their body completely sealed off? My guess is that the hand would start to boil or freeze depending on location.
17
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1answer
1k views

Is there any reason why American spacesuits color changed over years?

From Mercury silver suits to orange Space Shuttle ones, color of space suits have changed over years. Is there any reason for it?

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