Questions tagged [life-support]

Questions about life support systems in use on spacecraft, space stations, extraterrestrial colonies, or simulated extraterrestrial environments, about their function, design, effectiveness, historical references, or any other considerations regarding their use in space exploration.

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9
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3answers
6k views

Does the ISS need more heating or more cooling?

While reading the recent question 'Do exercise machines on the ISS generate electric energy?', I got thinking all of the exerciser machines generate heat (heat energy). So yes all exercise machine ...
12
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2answers
426 views

What work is being done to develop and test artificial gravity?

There are many ways to produce artificial gravitational effects, such as a rotating spacecraft, linear acceleration, or harnessing magnetism. Possibly there are other ways to produce gravity that have ...
8
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2answers
2k views

Depressurization of a habitat on Mars

Wikipedia lists the atmospheric pressure of Mars to be about 600 pascals, or just 0.6% of Earth's atmosphere. I'm wondering, can anyone shed any light on what that means, in practical terms? ...
22
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1answer
2k views

Were the Apollo CO₂ scrubber canister designs unified after Apollo 13?

After the problem realized when trying to put up three astronauts for an extended stay in the Apollo 13 LEM, namely that the square CM CO₂ scrubbers didn't fit in the LEM's slots, were they redesigned?...
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 ...
23
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2answers
24k views

Air temperature and humidity inside the ISS

The International Space Station being an artificial habitat for humans; it seems reasonable to assume the air temperature, and humidity levels are maintained at well-defined levels. What are the air ...
22
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4answers
6k views

Oxygen self-supply by plants

Plants produce oxygen, we know. This might make plants useful in the supply system of possible colonies on other planets or moons. But how efficient they are? Which is the maximum amount of oxygens ...
11
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2answers
360 views

Combatting noise in spacecraft

It is a well-known fact that it is quite noisy aboard the ISS. Fans and pumps working all the time, valves closing/opening etc. Crew members live through it with ear protection, but that doesn't mean ...
15
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1answer
6k views

What would have happened if the skin of an Apollo lunar module was ruptured?

The Apollo lunar module had thin skins of foil for protection / air containment. What would have happened if a hole was made in this skin by a flailing astronaut, screwdriver, asteroid, etc.? Would ...
38
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4answers
4k views

Are there any safety procedures in place on the ISS in case of puncture?

The ISS is a huge (relatively) satellite which, according to NASA, is longer than a football field. I am curious about what would happen if the station's skin was punctured - perhaps by a careless ...
21
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3answers
20k 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 ...
12
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2answers
1k views

What is the most sustainable method of recycling (human) solid waste on a manned space vessel?

After reading and answering James Jenkins's interesting question on wiping in space, I was curious about the usage of solid waste on a manned space vessel. In his question he mentions recycling solids ...
59
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3answers
6k views

Washing clothes in space: are there any technical challenges?

Currently, the ISS is resupplied with fresh clothes from the Earth. I remember reading a report on NTRS stating that the requirements for fresh clothes proved to be much higher than expected. Thus, ...
12
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2answers
407 views

What is the optimal selection for a small self sustaining space farm?

There are a multitude of resources about growing food in space, NASA research indicates we have been growing foods in space for years. Colonies in Space by T. A. Heppenheimer seems to have some ...
5
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2answers
102 views

Would a biological resource-system be feasible for long-term manned flights?

Supposing a long-term manned flight is planned would a biological resource-system be considered as an option? Would a biological resource-system work or is a technical solution superior? Currently ...
20
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2answers
449 views

Is converting moon dust into oxygen a viable option for sustainability?

On the about page for Project Morpheus, the possibility of converting moon dust into oxygen is mentioned: It was manufactured and assembled at JSC and Armadillo Aerospace. Morpheus is large enough ...