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Questions tagged [spacesuits]

Questions regarding the spacesuits that astronauts wear whilst in space

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What would be the longest hypothetical emergency which would confine the Apollo astronauts to their suits?

This answer poses the possibility of an emergency that would require Apollo astronauts to spend the rest of the mission in their suits: A hole in the CSM might be more of an issue, since large ...
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How to replace and refurbish the EMU suit used at the ISS?

If new parts for the EMU suits should be transported to the ISS they may use the Progress cargo space ship. But what about return of used suit parts to ground for refurbishment? A Progress cargo ship ...
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How old are the EVA space suits that are currently used on the ISS?

Scott Manly says in his new video Updates - JPL Visit, Mars 2020, Moon in 5 Year, EVA Changes, Indian ASAT after about 03:25 that the EMUs that NASA uses are ...
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Which would be more prone to regolith-ice-melting issues, a rover's wheels or an astronaut's boots?

This answer to Has NASA “gone south”? Why are astronauts needed to explore the Moon's south pole? and the question What would happen if an Apollo astronaut landed on Pluto? both touch on issues of ...
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Could a pressure suit be used for a short emergency EVA?

What if a docking accident leaves the spacecraft depressurized and unable to re-pressurize. The hatch may be jammed/ punctured or a window blown. In such a scenario, the astronauts would have their ...
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What is the purpose of the spacesuit in the crew dragon?

In this picture, in the background, there is a spacex spacesuit. I could not find why they had it. Are they going to use it for a spacewalk? Are they going to test it in microgravity? So my question ...
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Why ISS Astronauts have red stripes?

After seeing the interesting question How do ISS astronauts “get their stripes”?, I was wondering why the color red was chosen for the identifying stripe: I am assuming that red is the best color ...
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How do ISS astronauts “get their stripes”?

This answer shows two astronauts on a spacewalk outside the ISS. The caption reads: Rick Mastracchio as EV1 (red stripes) and Mike Hopkins as EV2 (no stripes) leaving the airlock during US EVA-24 (...
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Conditions on Titan under which human breath can be set to fire

Motivated by the question Titan vs Mars for colonization, I wonder what exactly happens if human exhalation products are released into Titanian atmosphere and, say, a spark igniter happens to be ...
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What joints of Apollo 17 space suits did moon dust get into, making the astronauts arms difficult to move?

At about 02:45 the Curious Droid video Apollo, the Lunar Dust and NASA's Dirty Problem says: During Apollo 17, crew members Harrison “Jack” Schmitt and Gene ...
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What is the current state of Squeeze-suit development, as distinguished from gas-pressurized models? [duplicate]

This ten-year-old article on a squeezesuit concept estimates that it is ten years from completion. Ten years have passed, and this article is still the #1 hit on Google, with a couple of other ...
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How to get water inside a space suit?

How is water transferred from outside the suit to inside the suit?
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What freedom of movement does an untethered, thrusterless astronaut have? - with a 20lb sledge

Considering a suited human space explorer, in free space with no means of thrust or acceleration aside from their dexterity, their own mass, and that of a sledge hammer, what possibilities exist for ...
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spacesuit airconditioning [duplicate]

I read that during the EVA, the astronauts body temp. was maintained by the PLSS, by rejecting the body heat, using porous plate sublimator. In this porus plate, water was made to evaporate into space ...
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How many space suit types could be used at the ISS if Starliner, Crew Dragon and Soyuz were all active?

I just watched the CBS news video SpaceX and Boeing competing to capture the American flag in space about the "race to bring the flag home". It got me wondering about the variety of suits. I lose ...
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How does the thin gold film in the glass of spacesuit helmets block thermal IR but transmit visible? What's the property?

Comments below this answer suggest that there is a thin gold coating on the glass of spacesuit helmets that blocks thermal IR (say roughly about 10 to 30 microns) but is mostly transparent to visible ...
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Spacesuit needed for 1 psi 100% methane atmosphere - 60 Fahrenheit?

What sort of spacesuit would an astronaut need if she were to walk on a planet with a 1 psi (0.07 ATM) 100% methane atmosphere and -60°F (-50°C) temperatures?
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Current and near-future space suit odor reduction technology

Fox News' Bill Nye says Mars colonies won't happen: 'Are you guys high?' gives some highlights of science educator Bill Nye (The Science Guy)'s thoughts on Mars, moving there, living in artificial ...
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What is currently known as the thinnest combination of material to hold 1 atm in space?

What is currently known as the thinnest combination of material to hold 1 atm in space? Note: must define what the composing materials are.
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Why is the Sokol suit white instead of safety orange?

The Sokol is a Russian rescue suit that continues to be used today$^{(1)}$ for launch and landing. It protects the wearer from depressurization, but because it has no micrometeroid and limited ...
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Current state of the art Mars spacesuit?

What's the current state of the art spacesuit for use on Mars? I'm wondering about things like size, shape, materials, layering, performance, weight and comfort. In particular, how thin can the main ...
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Is it possible to build hard shell suit with tighter fit to the body

The only hard shell space suit I know of, NASA''s AX-5, was big, bulbous, and seems to be not very comfortable, although offering zero pre breathing, when entering the suit. What I am thinking, is if ...
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How do space suits offer heat protection i.e. during the lunar day?

I didn't know that during lunar day temperature is up to +100°C. This would mean US astronauts were rather to protect against heat than cold? How was this solved (normally, space suits protect from ...
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Does the design of Orlan's entry hatch preclude the use of waist bearings?

One major difference between the Extravehicular Mobility Unit and the Orlan space suits is the entry method. EMU uses waist entry while Orlan uses rear entry. The waist entry allows EMU to use a waist ...
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Why were EVA suits never silver?

As noted in this question and this NASA webpage, for more than 40 years U.S. and Russian spacesuits for extra-vehicular activities have been white because white reflects heat so that the astronaut ...
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Are the materials presently available to make the SpaceX space suit?

In earlier human space missions we have seen space suits which are really bulky and big in size. But in recent news we saw the latest design by SpaceX, which are seems less bulky and slim as well. ...
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How can space suits hold a pressure when they're hand sewed?

Whenever I saw a clip about making spacesuits they always emphasized that space suits, since day one, were sewn by-hand at some particular company in Delaware. How can hand-sewn anything maintain 5 ...
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Combined Mechanical Counterpressure and Gas-Pressurized suits

The "Mechanical Counterpressure" (or SAS) space suit is the holy grail when it comes to mobility, flexibility, and being lightweight however it also has it's share of problems. It's very difficult to ...
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What ever happened with that pressure suit design based on elastic tension in contact with skin?

I remember several years ago seeing a pressure suit design based on carefully engineered elastic material in contact with the skin. Instead of pressure on the skin produced by a pressurized gas, the ...
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Would it be possible to use a modern Orlan-MKS space suit for a moon walk?

The Orlan space suits are semi rigid with a solid torso and flexible arms and legs. They (the previous models) have been used for space walks in Earth orbit with success from 1985 until now. Their ...
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Can modern EVA spacesuit be put on/taken off by single person, without assistance?

Watching TV streams of NASA spacewalks I note that at least one extra crew member helps two spacewalkers before their excursion and after it. Can modern EVA spacesuit be put on/taken off by single ...
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Which astronaut boots might it be that inspired Michael Jackson's patent?

The BBC article Doctors explain Michael Jackson's impossible dance move describes the recently published article in the Journal of Neurosurgery: Spine How did Michael Jackson challenge our ...
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Are alternatives to spacesuits, like one person pods, being developed? [duplicate]

I'm thinking that for extended zero gee extravehicular activities (say space construction) a single person pod (if that's the right word) would be more all round useful than a space suit. Faceplate ...
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What is the procedure when a spacesuit gets a tear in it? [duplicate]

What do you do if you are in space and you get a rip in your spacesuit other than getting right with God? What if you cannot get back to base in time?
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Emergency Spacesuit Protection?

In an emergency how much and what kind of protection would a spacesuit provide protecting against an explosive decompression event in the habitat the wearer is in? Can air pressure be accumulated ...
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Can air pressure be accumulated this way for a biodome or spacesuit?

Using plastic or rubber or something similar and transparent be inflated with each layer having a increasing pressure lessening the strain on the containing material? When one or two layers fails the ...
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Why do astronauts wear heels?

I was reading another question on the site when I noticed the EVA suit sports heels. Why do they put heels on space suits? (cropped detailed view)
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Why did Space Shuttle astronauts wear gloves upon reentry?

I read an article about STS 107, in which the crew videorecorded their search for the gloves to put on.
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Have astronauts gotten sick on EVA?

In lots of science fiction, people have EVA suits which automatically preform First Aid or administer temporary medical help (such as painkiller injections) so that they can get themselves to a safe, ...
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If a living person had been inside Starman's suit, would the launch have been survivable?

The spacesuit in the falcon heavy test launch was a genuine test article. Assuming the suit performed nominally could a person have ridden the roadster into space?
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What space suit is this? [duplicate]

I recently saw this picture, and it puzzles me as to what they are wearing. At first thought, I imagined that they would be space suits. But, they went in a Soyuz craft, and the suits for a Soyuz don'...
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What's the normal leakage rate for a space suit?

What's the normal leakage rate for a space suit? For a modern (as in, the model is still in use today) EVA suit in normal condition, undamaged, etc. If there is a wide variation in leak rates for ...
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What first aid options do astronauts have during an EVA?

If an astronaut gets unconscious or ill I suppose the colleague will help her to the airlock. But are there any other measures that could be taken already outdoors? Do they have duct tape to seal a ...
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Have any space suits (not) used “pulsed magnetic devices”?

A currently trending question on Skeptics.se references a website that makes the claim that: In Yuri Gagarin’s historic flight to space, he returned in near critical condition after only one hour ...
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How is a space suit climate controlled? [duplicate]

I understand how one could be heated, but how does the space suit cool the water that is noodled throughout it exchanging heat with the body? Why is this method used over traditional methods like a ...
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1answer
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Flight Suit Pressurization

I'm curious about the pressurization of a full pressure flight suit (such as). For example, the linked suit has an operating pressure of 3.5 psi, but my assumption would be that during normal flight ...
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1answer
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Is there a standard in spacesuit pressure testing protocol?

Following Elon Musk's and SpaceX's recent announcements of their spacesuits being tested to "double vacuum pressure", there's been some speculation on what this meant. It got me wondering - do NASA, ...
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What does “double vacuum pressure” mean in space-suit testing?

There was news of the new SpaceX space suit in Reddit and now a mention in Elon Musk's Instagram where he says: First picture of SpaceX spacesuit. More in days to follow. Worth noting that this ...
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What is the blue box that the Exp. 53 Astronuats/Cosmonauts carried with them?

Looking at a video from Roscosmos on instagram, Exp. 52 Cosmonaut Sergey Ryazansky carried a blue box with him during his walk to the Soyuz rocket. Upon looking at more videos of Astronauts boarding ...
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Apollo Suit sublimation coolers

Should there be a visible steam plume from the Apollo astronauts sublimation cooler in the lunar EVA videos?