Questions tagged [spacesuits]

Questions regarding the spacesuits that astronauts wear whilst in space

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How much of a drag is it, orbiting the Earth in a space suit?

An astronaut in a spacesuit travels around the Earth at the same altitude as the ISS. Let's say the astronaut leads the ISS by 1000 meters along the same orbit. After one orbit, how much velocity has ...
uhoh's user avatar
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Orlan suit inside arm/hand access

I have heard than under some conditions a user of the Orlan EVA Suit can retract his/her arm inside the suit torso, then re-insert arm into suit sleeve and glove (under suit pressure). Can you confirm ...
Tim Lexen's user avatar
6 votes
1 answer
483 views

Which consumable resource puts the hard limit on EVA time?

EVA suits use an array of consumable resources: oxygen, CO2 filter, nitrogen, electricity, sublimator/coolant water, drink water, maybe something else I missed. So, if an astronaut on EVA in LEO was ...
SF.'s user avatar
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2 answers
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What does the interior of a spacesuit smell like?

What does a new spacesuit and breathing apparatus smell like when you first put it on? The natural progression of the question is does the scent wear off and does it get to smelling stagnant and ...
whitepawn's user avatar
6 votes
1 answer
156 views

Would potential astronauts on Titan be in danger of being blown away?

Titan (the largest moon of Saturn) has a thicker and denser atmosphere than the Earth and a surface gravity of less than 1/7 that of the Earth. So potential visitors would be very light and what would ...
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6 votes
2 answers
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How hot was the surface of RTG radiator which powered ALSEP on Apollo-12?

The last 5 Apollo missions that landed on the moon (starting from Apollo-12) deployed Apollo Lunar Surface Experiments Package (ALSEP) which was powered by radioisotope thermoelectric generators (RTG) ...
Sergiy Lenzion's user avatar
6 votes
1 answer
510 views

How can an Astronaut survive for six days inside a Spacesuit?

In the video #AskNASA | What are the Next Generation Spacesuits?, spacesuit engineer Dustin Gohmert says the following about the Orion Crew Survival Suit (Orange Spacesuit): This suit is also ...
Vishnu's user avatar
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Specifications on ISS EVA suit cameras

The suits that astronauts use to preform EVA's on the ISS have some sort of "TV camera" with which they stream analog video back to the ISS and then back to Earth so that we can see it on ...
Dragongeek's user avatar
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6 votes
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Russian Chibis suit

The Russian Chibis suit is operational since 1971 and is used aboard the ISS, are there recent developments in this technology? How effective has it been found in counteracting the tendency of fluids ...
aitía's user avatar
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Can an astronaut have a private communication during a spacewalk?

In this NASA page it describes an astronaut remaining in contact during an EVA. While inside these pressurized suits, it's essential that they (the astronauts) remain in constant communication ...
Bob516's user avatar
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Can astronauts in currently planned pressure suits survive a cabin which cannot be repressurized?

Imagine the Crew Dragon (or Stariner or Orion) has just achieved orbit. Due to a manufacturing flaw or a meteor, the window suddenly blows out. All 6 of the crew manages to get their suit visor's ...
Johnny Robinson's user avatar
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Why do spacesuits have air in the body? [duplicate]

Wouldn’t it be easier to make a space suit that only maintains air around the head, and just has a “tight” insulated and shielded suit around the body? It seems to me the reasons we need a space ...
oeste's user avatar
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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 ...
Chris B. Behrens's user avatar
5 votes
1 answer
2k views

How do astronauts deal with micrometeorites during EVA?

There's always micrometeorites in orbit, and they constantly hit the ISS. So my question is during EVA, how do astronauts protect themselves? Is their suit designed to take impact? Since there are ...
XTImpossible's user avatar
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1 answer
355 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
5 votes
1 answer
671 views

Do launch suits have markings that can distinguish between crew members?

We've had two questions about the red stripes on extravehicular suits, used to distinguish between the suited astronauts. Usually the more experienced or higher-ranking astronaut wears the stripes. ...
DrSheldon's user avatar
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Was any hole in the upper layers of the Apollo suits found caused by a micrometeorite impact?

What about the micrometeorite protection layers of the Apollo suits used for lunar EVA? Was any hole found after landing on Earth?
Uwe's user avatar
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How can space suits hold a pressure when they're handsewn?

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 handsewn anything maintain 5 psi?...
Randy Zeitman's user avatar
5 votes
1 answer
453 views

Who transliterates non-Russian names into Russian for space-suit name tags?

Many, many astronauts have gone on to be wonderful orators, educators, advocates for science, education and positive thinking, Major Tom Colonel (ret) and (fmr) ISS Commander Chris Hadfield is just ...
uhoh's user avatar
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How does an ACES suit seal at the feet?

The Advanced Crew Escape Suit -- also known as the ACES suit or "pumpkin suit" -- was worn by all Shuttle astronauts (since 1998) during launch and landing. The helmet and gloves were connected to ...
DrSheldon's user avatar
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Do space suit designers exist?

I was just having a closer look at the new space-suits by SpaceX, that were worn by NASA astronauts Bob Behnken and Doug Hurley (image below this question). The design made me wonder about who may ...
publicdomain's user avatar
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2 answers
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Non-biological end effectors (hands) in spacesuit design

Designing the 'end effectors' or gloves of a spacesuit is notoriously difficult. Hands have are extremely flexible and are the primary interface that humans use to interact physically with the world. ...
Dragongeek's user avatar
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What would happen if you wore 'soft suit'(IVA suit) in the vacuum of space?

I am looking for the effects (mainly in the short term) that you would experience if you were to go on an EVA wearing an IVA suit. For example, I don't think that the IVA suits have any form of ...
Astro Nato's user avatar
5 votes
1 answer
286 views

Can the Valsalva maneuver or nose-scratching be done inside a SpaceX suit helmet?

Sometimes you gotta scratch your nose. Or you need to perform the Valsalva maneuver (close your nose and mouth, then blow hard) to help make your ears "pop". If you can flip your helmet ...
DrSheldon's user avatar
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5 votes
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512 views

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 ...
uhoh's user avatar
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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 ...
DrSheldon's user avatar
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5 votes
1 answer
444 views

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 ...
Uwe's user avatar
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1 answer
990 views

How can space suit gloves be improved?

Gloves on space suits are hard to use because of their high gas pressure relative to the surrounding vacuum. It's simply strenuous to bend the fingers and astronauts are even said to lose their nails ...
LocalFluff's user avatar
5 votes
1 answer
479 views

What is the use of a helium tank in this very early space suit design?

The answer to this question included this image from a book by Wernher von Braun he wrote in 1960. This space suit design misses a micro meteroite protection as well as liquid cooling to remove ...
Uwe's user avatar
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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
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5 votes
0 answers
178 views

Design considerations for a space suit going to Mars?

Essentially, I am trying to design a heat exchanger for a space suit traveling to mars. From my understanding, I assumed that the energy generated from the space suit relates to the astronaut as well ...
Rye's user avatar
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5 votes
0 answers
103 views

Are ferrofluidic seals used in spaceflight? Main applications? Human-rated?

Comments below this answer have inspired this quesiton. Wikipedia's Ferrofluidic seal sez: Ferrofluid-sealed feedthroughs routinely operate in environments including ultra-high vacuum (below 10⁻⁸ ...
uhoh's user avatar
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5 votes
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528 views

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 ...
DrSheldon's user avatar
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5 votes
0 answers
191 views

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'...
Jayemby's user avatar
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5 votes
0 answers
200 views

What is the method of joining fabric to the glove and helmet rings in a spacesuit called?

What would you call the method of joining fabric to the glove and helmet rings in a spacesuit by clamping it between two metal rings?
Schlusstein's user avatar
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4 votes
1 answer
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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.
HeavenlyHarmony's user avatar
4 votes
2 answers
942 views

What is the fastest time for donning a space suit?

We have the question Time to prepare for EVA out of ISS that has a good and complete answer about the hours to days long process to prepare for an EVA from the ISS. My question is just about getting ...
James Jenkins's user avatar
4 votes
1 answer
236 views

Plans for HUD in next-generation spacesuits

A HUD (Head Up Display) allows a computer to display information directly into a user's line of sight and thus allows them to interface with that computer without needing to look at a tablet or ...
Dragongeek's user avatar
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4 votes
1 answer
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New Russian Sokol space suit [closed]

According to the pictures of the mission Soyuz MS-03, the crew is wearing a new "Sokol" space suit. The previous crew was still wearing the 1980 "vintage" KV2 version. Any information about this new ...
Covich's user avatar
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4 votes
1 answer
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Communion on the Moon

This article (and some others) confirms "that Buzz Aldrin took communion on the surface of the moon". How is it possible that he ate and drank on the surface of the moon while wearing a space suit?
SabreWolfy's user avatar
4 votes
2 answers
189 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
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4 votes
1 answer
433 views

Did the Space Shuttle crew have to worry about monatomic oxygen?

Comments below this answer tell us that the Space Shuttle always remained in Earth's atmosphere. When it visited the Hubble Space Telescope or the ISS or Mir it was still in the thermosphere and ...
uhoh's user avatar
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4 votes
1 answer
574 views

Why aren't bubble helmets dangerous in direct sunlight?

I've been thinking lately about bubble helmets used by many cosmonauts and astronauts. Almost every space suit I've seen features a curved helmet, even the Gemini astronauts. But a curved piece of ...
DrZ214's user avatar
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4 votes
2 answers
1k views

How (and when) do astronauts suit up when leaving ISS?

I was watching the return of Scott Kelly to earth from the ISS, I noticed that when the crew entered the Soyuz, they didn't wear spacesuits (https://youtu.be/saE0JGtIEKE?t=7m13s) but when they are ...
user3004798's user avatar
4 votes
2 answers
252 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
1 answer
174 views

Experience of breathing regular air vs. Nitrox vs pure oxygen at 4.3 psi?

Has any astronaut/cosmonaut described a difference in the feeling of breathing pure oxygen at 4.3 psi in a spacesuit compared breathing regular air at sea level or even to Nitrox used in the Neutral ...
Bob516's user avatar
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4 votes
2 answers
224 views

Are there other "glow in the dark" Luminex wire and light-emitting patch designs for the Z-2 or any other space suit?

The prototype Z-2 space suit has different light-emitting patches to make it easier to identify specific crew members during a spacewalk. NASA has released these three designs. image source image ...
Bob516's user avatar
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4 votes
1 answer
399 views

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 ...
uhoh's user avatar
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4 votes
1 answer
472 views

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 ...
uhoh's user avatar
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4 votes
1 answer
101 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