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Questions tagged [environment]

How human made objects in space cope with the environment of space, including radiation, dust storms, thermal issues, magnetic fields, toxicity, etc.

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What would it feel like to be in a Martian dust storm?

In a recent question, 'Could an EVA Suit meant for Mars be used for EVA on another celestial, or vice-versa?', there was some discussion in the comments about the effects of a dust storm on Mars ...
23
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2answers
21k 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 ...
13
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2answers
1k views

How is equipment sterilized for space missions?

This refers to the sterilization of space exploring tools like rovers and probes. It is important to not send out rovers that contain any bacteria, because another rover, from another mission, could ...
48
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2answers
16k views

Why don't the Space Shuttle's tires explode in the vacuum of space?

According to this NASA article the tires are inflated to 340 psi (main gear) and 300 psi (nose gear). At landing, there is significant strain, but what about in space? Are the tires exposed to vacuum ...
9
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6answers
710 views

Will suits worn on Mars lose kilograms of “expendable water” each time they are used?

In this excellent answer I learned that space suits from the Apollo missions and even when used in space walks from the ISS today use water sublimation to remove both body heat and other heat ...
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3answers
5k 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 ...
39
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2answers
11k views

Can fish really live in microgravity without water?

Yes, you read that title correctly. I saw the claim in "Colonies in Space", hosted on the NSS site. In a weightless space farm, it may be possible to raise fish without water. On Earth, when a ...
12
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2answers
453 views

Decision Factors for using 100% $ O_2 $ cabin atmosphere in early US space program

What are the reasons for deciding to use a 100% $ O_2 $ cabin atmosphere in the early US space programme? Was danger of nitrogen narcossis a factor? Did all missions prior to Apollo 1 use a 100% $ ...
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1answer
6k views

What material properties would be necessary to shield a lander from the environment of the Venusian surface?

On March 1, 1982, the Venera 13 lander survived for 127 minutes in an environment with a temperature of 457 °C (855 °F) and a pressure of 89 Earth atmospheres (9.0 MPa). This says nothing of the ...
23
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1answer
996 views

Has any technology been demonstrated that allows a useful payload to survive at least one month on Venus' surface?

According to the Wikipedia article on Venera-D, A lander, based on the Venera design, is also planned, capable of surviving for a long duration on the planet's surface. The surface of Venus has ...
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3answers
4k views

Is water on Mars the same as Earth water?

I would like to know how similar Mars water is to Earth water. Can we survive on Mars with Martian water without any major health issues etc?
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1answer
5k views

Could permanent self-sustaining biodomes be built on Mars?

Somewhat apropos of the question of whether Mars could be terraformed (which really seems a non-runner due to lack of molten core) the interesting consideration of biodomes was thrown up. By using ...
14
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1answer
297 views

How long could Solar Impulse fly in the Venerean atmosphere?

Extremes of temperature, and pressure serve to effectively constrict the life-span of a PV cell on the Venerean surface. Despite the cloud cover, the Venus' proximity to Sol makes for upto 1km ...
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2answers
1k views

Dangers of launching a nuclear thermal rocket

Nuclear thermal rockets may have great benefits for Solar system exploration. But one consideration is that the launch of a nuclear engine from Earth's surface, as the payload on a chemical rocket, ...
9
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1answer
428 views

Which computer monitors will work on Mars?

In The Martian by Andy Weir, the main character Mark Watney takes a laptop out of the habitation module to take notes. But when he comes out, he discovers that the LCD monitor is broken, because the ...
14
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1answer
954 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 ...
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1answer
134 views

What kind of lighting does the ISS use? [closed]

Is any feng shui used in lighting? Is the best light bulbs used with filters?
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0answers
22 views

What kinds of activities, experiment and, procedures done on the ISS must be done in chambers vented to space?

This answer to the question in 3D Printing SE How is 3D printing done in space? says The first big space-specific issue is actually air quality. You can't just open a window to air out the molten-...