Skip to main content

Questions tagged [spacesuits]

Questions regarding the spacesuits that astronauts wear whilst in space

Filter by
Sorted by
Tagged with
3 votes
0 answers
81 views

Exploration EVA by donning a dust protection suit over a pressure suit

It seems to me that a pressure suit for the Moon or Mars would be a lot easier to design if astronauts were simply required to don a dust protection suit over the pressure suit before going outside. ...
phil1008's user avatar
  • 6,288
7 votes
3 answers
307 views

Overcoming the Moon Dust Problem: Are We There Yet with Spacesuit Technology?

I've been mulling over a thought for quite some time now. As we gear up for a return to the Moon and possibly Mars, I can't help but think about one of the major issues from the Apollo missions: the ...
Twicks's user avatar
  • 216
0 votes
0 answers
74 views

What improvements will Axiom Space's Artemis spacesuit bring to current EMUs?

We know a design focus of the Axiom Extravehicular Mobility Unit (AxEMU) is to offer more flexibility for size fitting and movement than current EMUs, both for spacewalks and moonwalks. Based on what ...
Shawn Lim's user avatar
  • 195
6 votes
1 answer
2k views

Could Soyuz spacecraft have saved the Columbia crew?

For the sake of the question, let's assume the STS-107 crew realizes in orbit that the heat shield is too damaged for reentry, but they realize it too late for shuttle Atlantis to rescue them in time. ...
Old Man John's user avatar
13 votes
2 answers
4k views

Could a deadly fire start within a spacesuit?

At the end of S02E08 of the TV show "For All Mankind", a cosmonaut is shot on the moon and a fire erupts within his suit. My understanding is that the pressure of pure oxygen within a ...
phil1008's user avatar
  • 6,288
15 votes
2 answers
1k views

Are suits in the NBL pressurized differently than during flight?

I don't know why I've been in a spacesuit mood lately, but the following crossed my mind recently: the flexible portions of NASA'S EMU suits are inflated by the interior pressure the suits in the ...
Erin Anne's user avatar
  • 12.1k
4 votes
0 answers
199 views

Have external food/drink for EVA suits been considered?

This chat between ex-Mythbuster Adam Savage and ex-astronaut Mike Massimino mentions the danger of getting water inside your helmet in freefall. I idly mused about a (probably stupid) idea: that if ...
Erin Anne's user avatar
  • 12.1k
2 votes
3 answers
335 views

Why does NASA suit color coding not follow conventional navigation color coding?

Pictures of NASA spacesuits like the ones below of Neil Armstrong’s Apollo suit (from the Smithsonian) and Gemini suit usually show the right wrist connection red and the left blue. Color coding for ...
Woody's user avatar
  • 22.4k
4 votes
2 answers
260 views

Could you skim along the Karman line using a parafoil?

Imagine a person just wearing a spacesuit equipped with a parafoil returning from low orbit. Could they maintain altitude starting at 7.8 km/s above or along the Karman line slowly losing speed—maybe ...
Prototypist's user avatar
4 votes
0 answers
230 views

What do I use to make a Neck Ring?

I’ve been working on a homemade space suit, and I’ve been trying to figure out on what to use to make a neck ring. But so far I can’t really find anything, Does anyone know what I could use for the ...
Frank's user avatar
  • 41
5 votes
0 answers
151 views

What are the technical differences between AxEMU and xEMU?

On March 15, 2023, Axiom Space sort-of unveiled their lunar spacesuit, based on the NASA xEMU. I say sort-of because apparently, though the Axiom suit is selected for Artemis III, missions following ...
Erin Anne's user avatar
  • 12.1k
2 votes
2 answers
514 views

Lead lined Martian suit

Despite having to transport a significant amount of mass to Mars, would lead lined environment suits be viable, to provide cosmic radiation shielding for Martian colonists? Would carrying that extra ...
Mammoth's user avatar
  • 21
1 vote
0 answers
187 views

How to repressurize a vacuum chamber really fast?

There was an accident during a suit test in a vacuum chamber on December 14, 1966. The suit lost pressure and The chamber – which would normally take 30 minutes to repressurized – was blasted back to ...
Uwe's user avatar
  • 49.2k
15 votes
3 answers
3k views

Spacesuit with no thermal insulation. Would person inside freeze or overheat?

Let us say I have a theoretical super thin spacesuit which has zero thermal insulation. As if person would be naked in space, but all other variables - pressure, oxygen, food and other life support ...
ShoulO's user avatar
  • 355
2 votes
2 answers
222 views

What policies and capabilities are in place to induce hypothermia for the purpose of reducing hypoxic brain damage in EVA depressurization?

Depressurization incidents during EVA will have hypoxia as the ultimate cause of death or permanent brain damage. If an astronaut’s brain is deprived of oxygen, irreparable damage occurs after about 4 ...
Woody's user avatar
  • 22.4k
12 votes
1 answer
4k views

Why is the new Artemis suit orange?

In the picture it shows two different suits. Why did NASA color one orange just like they did with the space shuttle astronaut suits?
The Rocket fan's user avatar
5 votes
1 answer
382 views

For how long could astronauts stay on the surface of Europa, Jupiter's moon, with our current latest and most advanced spacesuit before dying?

Is it possible for astronauts to land on Europa safely? Given the fact that radiation level on Europa is about 5.4 Sv (or about 540 rem) per day and the temperature is around -260 °F (or about -160 °C)...
ZanMoon-chan's user avatar
3 votes
0 answers
210 views

Why the Snoopy Cap rather than a conventional headset?

Why do American astronauts wear the "snoopy cap" elastic hood with communications headset rather than a more conventional style of headset that doesn't have a hood? Does the cap provide ...
ikrase's user avatar
  • 8,883
13 votes
1 answer
3k views

Why is there a white panel in astronaut’s fabric headcover they wear inside the hard helmet?

Astronauts always have a black fabric headcover worn over their hair or scalp, when they are wearing the spacesuit and helmet for takeoff or EVAs. There’s always a white panel that looks about 3 ...
Farfel's user avatar
  • 139
4 votes
1 answer
104 views

Draper Labs' Control Moment Gyroscope Spacesuit

Back in 2013/2014 Draper Laboratory announced that they were designing and testing a "spacesuit jetpack" that employed control moment gyroscopes (CMG) to allow astronauts to preform EVAs ...
Jonathan L.'s user avatar
8 votes
1 answer
253 views

Space Suit for Artemis, why two contracts instead of only one?

NASA has selected two companies to make spacesuits for its Artemis moon program and future International Space Station (ISS) missions. Teams led by Axiom Space and Collins Aerospace (with ILC Dover ...
Uwe's user avatar
  • 49.2k
7 votes
1 answer
246 views

Moon Suit to be used for the Artemis III mission?

The Moon landing mission Artemis III is scheduled for launch in 2025. It will be the first Lunar crewed mission after Apollo. What is the development state of the moon suit to be used for moonwalks ...
Uwe's user avatar
  • 49.2k
1 vote
1 answer
141 views

Do you need to operate laptop computers to run the ISS SSRMS robots Canadarm2 & Dextre? What if there's a pressure loss and you're wearing a suit?

Comments and to some extent the current answer to If an ISS emergency requires pressure suits temporarily, can they still use the laptops? Move the cursor? address a highly unlikely scenario where a ...
uhoh's user avatar
  • 149k
12 votes
1 answer
546 views

Why do EVA suits have legs?

Why do EVA suits have legs? Planetary exploration suits (PES) obviously need legs. Spacesuits with legs are “a classic icon of human space exploration” and a requirement for mobility. https://www....
Woody's user avatar
  • 22.4k
1 vote
0 answers
280 views

Pressurized gloves have significant limitations. What are objective advantages/disadvantages of the alternatives? [closed]

Conventional EVA suits suffer from mobility and tactile sensory limitations due to their pressurization. Any articulated container which changes volume with motion will resist motion if pressurized. ...
Woody's user avatar
  • 22.4k
24 votes
2 answers
6k views

Why aren't spacecraft and spacesuits pressurised to 2.5 psi (17 kPa) of pure oxygen?

Today 1 atm (101.3 kPa, 14.7 psi) with sea level composition is most commonly used on spacecraft to avoid fire hazards like in Apollo 1 (not that it would have helped the Apollo 1 crew as they couldn'...
user avatar
4 votes
2 answers
193 views

How long can astronauts wearing Dragon capsule suits walk around unconnected to water coolers?

At various moments in the NASA video NASA’s SpaceX Crew-3 Astronauts Launch to the Space Station astronauts are shown standing or walking or otherwise posing for the camera in their Dragon capsule ...
uhoh's user avatar
  • 149k
42 votes
1 answer
6k views

What is the text on Neil Armstrong's space suit's left glove?

I was looking at the Smithsonian National Air and Space Museum's collection, and Neil Armstrong's Apollo 11 spacesuit has some text written on the left glove. It looks like some sort of instructions, ...
Timothy G.'s user avatar
14 votes
1 answer
2k views

What spacesuit helmet is this?

There's a classic series of black-and-white photos from the mid-80s showing early shuttle astronaut Anna Fisher in a helmet; one was reportedly on the cover of Life magazine. Image source: reddit, ...
Organic Marble's user avatar
3 votes
1 answer
175 views

What was the first Soviet/Russian spacesuit to use closed-loop ventilation?

The spacesuit used for the first spacewalk used open-loop ventilation, venting exhaust gases into space: On reaching orbit in Voskhod 2, Leonov and Belyayev attached the EVA backpack to Leonov's ...
DrSheldon's user avatar
  • 48k
4 votes
1 answer
173 views

What are Virgin Galactic Space Suits for? What do they do? What don't they do?

In the CNN video linked below the reporter mentions to Unity 22's Astronaut 004 Sirisha Bandla: When people think of Virgin Galactic, they’re thinking of giving people new astronaut wings like the ...
uhoh's user avatar
  • 149k
24 votes
4 answers
4k views

In simple terms, how does the way space suits manage breathable gas differ from how scuba gear does it?

I say "breathable gas" because what's in the tank can be a variety of mixtures and I don't know a single word for gas mixture you can safely breathe. less scientific or clinical sounding ...
uhoh's user avatar
  • 149k
12 votes
2 answers
2k views

Would've the CO2 scrubbers failed before the O2 supply ran out during an Apollo moonwalk?

This absurd video on Reddit of the Earth blowing up while Apollo astronauts were walking on the Moon got me thinking. Assuming something catastrophic happened to the Lunar Module the moment the two ...
Bob516's user avatar
  • 6,999
18 votes
2 answers
3k views

How did astronauts tie the laces on their gloves?

I've been looking through images from the Smithsonian regarding early space exploration. In particular, I found this picture of a spacesuit glove, that has laces on it. In the picture's description, ...
usernumber's user avatar
  • 5,068
17 votes
1 answer
3k views

Where exactly are the Apollo space suit sublimators venting steam into space? is there a photo of an astronaut in space that shows the opening?

This excellent answer to How have space suits dissipated the heat removed from astronauts? shows a diagram including the sublimator unit in the red square where the phase transition of water from ...
uhoh's user avatar
  • 149k
1 vote
1 answer
479 views

What are the quickdraws for around the torsos of the crew-1 crew?

From a NASA tweet we can see the crew exiting, with a pair of quickdraws around their chest: Oddly, everyone seems to get a different model: What are these used for?
Phil Frost's user avatar
  • 1,033
21 votes
1 answer
3k views

How was the "female" SK-2 different from the "male" SK-1 spacesuit?

The SK-1 was the spacesuit worn on the Vostok 1-5 flights. The same article describes the SK-2 suit as "[a]lmost exactly the same as the SK-1 but designed for a woman". It was worn by ...
DrSheldon's user avatar
  • 48k
32 votes
3 answers
9k views

Why do astronauts wear spacesuits during launch?

I have noticed that astronauts in every launch I've found wear a spacesuit during launch, like this example from the shuttle. I don't understand this. What kind of problem could cause loss of cabin ...
Ryan_L's user avatar
  • 1,042
14 votes
8 answers
12k views

Would a duct tape spacesuit be practical?

Spoilers ahead for season 2 of For All Mankind. Essentially duct tape wrapped around the body, over clothing which looks like standard NASA jumpsuits for pressurized environments onboard spacecraft. ...
user's user avatar
  • 1,663
0 votes
1 answer
158 views

Sealing of hatches of Spacecraft capsule, LM and spacesuits

Was there any "plan B" / solution, in case sealing of capsule hatch, LM hatch and spacesuit helmet failed during Apollo missions or any other spacecraft? How did NASA ensure a failproof ...
Niranjan's user avatar
  • 3,796
12 votes
1 answer
1k views

Was the SK-1 spacesuit tested in flight prior to Gagarin's historic mission?

April 12 is the 60th anniversary of the first human spaceflight, Vostok 1. As no human had previously been to space, it was also a test of the SK-1 spacesuit that cosmonaut Yuri Gagarin wore. This ...
DrSheldon's user avatar
  • 48k
9 votes
2 answers
1k views

Was there ever a suitcase-sized spacesuit?

Were there any spacesuit designs small enough to fit inside a suitcase? Such a suit might be useful in emergencies or as a backup suit. Prototypes are fine. Okay to exclude the helmet if it is too ...
DrSheldon's user avatar
  • 48k
23 votes
1 answer
2k views

Astronauts make a lot of CH₄ and some H₂ as well; do space capsules and space stations have systems to remove these?

While not as much as ruminants, humans emit methane, CH4, natural gas, etc. regularly. While it is less known, we can also emit hydrogen as H2. What are the sources of molecular hydrogen in human ...
uhoh's user avatar
  • 149k
15 votes
2 answers
2k views

Why don't astronaut helmets fog up? What's the chemistry and thermodynamics behind keeping the field of view clear even during heavy breathing?

Some space walking involves exercise (e.g. moving heavy stuff around) and the outside surface of a faceplate is constantly radiating its heat out into space. At night that thermal radiation is not ...
uhoh's user avatar
  • 149k
2 votes
4 answers
434 views

How far are space-walking helmet faceplates from the eyes? How far will I have to hold my "space binoculars" from my eyes during a space walk?

I'm on a space walk and comet Kohoutek is passing by and I've brought my specially designed space binoculars with me to look at it. I left my Nikon Monarch 8x42 binoculars inside because with an eye ...
uhoh's user avatar
  • 149k
3 votes
1 answer
280 views

How will the future Mars Space Suit Helmet design protect Astronauts from Martian Radiation?

Mars Space Suit Helmet Visor's were mostly made up of polycarbonate [1], the same material used for EMU's visor for performing EVA in earth orbit. Meanwhile, Mars' radiation is 2.5x higher. How are we ...
FutureMartian's user avatar
16 votes
1 answer
4k views

What was the space helmet "vomit port"?

Based upon centrifuge test results, MSC directed Hamilton Standard to modify the space suit helmet. The vomitus port and other obstructions to the line of sight in the downward direction were deleted....
DrSheldon's user avatar
  • 48k
2 votes
1 answer
188 views

Atmosphere inside a space capsule and need for spacesuits

Was the internal atmosphere of Mercury capsule and CSMs of Apollo missions filled with pure oxygen at low pressure, and was the ambiance controlled to match closely to that on earth (e.g. humidity, ...
Niranjan's user avatar
  • 3,796
4 votes
1 answer
214 views

Is there an easy way to distinguish pictures of the LES and ACES suits?

The Launch Entry Suit and Advanced Crew Escape Suit were the intravehicular suits used on most Space Shuttle missions. ACES was an improved version of the LES, and both earned the nickname "...
DrSheldon's user avatar
  • 48k
14 votes
2 answers
2k views

Do astronauts wear G-Suits during the launch?

Nowadays, rocket launches (to the ISS) accelerate astronauts at a maximum of around 3 to 4g (source). I have seen quite a few ...
publicdomain's user avatar
  • 1,222

1
2 3 4 5