Questions tagged [spacesuits]

Questions regarding the spacesuits that astronauts wear whilst in space

24 questions with no upvoted or accepted answers
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11
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0answers
179 views

Reentry without pressure suits in Apollo: was there a formal risk assesment?

In Apollo 11 Flight Journal the following is stated: The crew will make re-entry without suits or helmets on. Although this was a controversial decision on the first Apollo flight, Apollo 7, when ...
8
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0answers
324 views

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 ...
8
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141 views

Smart suits in development

This is an offshoot of this question. There's a new generation of space suits coming up (Z-series, anything that the Zvezda NPP has up its sleeves), and I wonder at the level of sophistication of ...
5
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0answers
84 views

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 ...
5
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0answers
133 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 ...
5
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0answers
55 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 ...
5
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0answers
185 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?
4
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1answer
148 views

In layman's terms, how hot will the skin of a spacecraft become, 144 million miles from the Sun?

Ok, last week I asked how hot would a piece of metal become at a distance from Earth to Mars facing the Sun. Thank you for all the nice replies, but I do not have much math knowledge. So let me ...
4
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0answers
296 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 ...
3
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0answers
116 views

Why was the Communications Carrier Assembly black and white?

I understand the CCA, the headset for NASA astronauts, was made up of lycra and teflon fabrics. Is there a reason, relevant to space flight, that the two materials were different colors?
3
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118 views

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.
3
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0answers
241 views

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 ...
3
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0answers
802 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 ...
3
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0answers
415 views

What factors affect the thickness of EVA spacesuits?

Most current extravehicular activity spacesuits are very thick and chunky, like EMU or Orlan. Even though NASA/MIT work on something thinner (Bio Suit), it's not for EVA in vacuum of space, but for ...
2
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0answers
43 views

What are the different Z-2 space suit Luminex light-emitting patch designs?

The prototype Z-2 space suit has different light-emitting patches to make it easier to identify specific crew members during a spacewalk. image source Have other design of patches been discussed in ...
2
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0answers
132 views

Why did NASA want the Z-2 prototype spacesuit need to mimic the appearance of sportswear?

NASA has been considering a new type of space suit, the Z2 Spacesuit, "in order to protect NASA astronauts embarking on a new class of mission, NASA has to build a new class of space suit. Far off ...
2
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0answers
49 views

How are xEMU's rotating joint at waist level shock proof?

Following this question about new spacesuits (xEMU), I was wondering how resistant to shock might be the biggest rotating seal, (at waist level) considering an astronaut might fall or be hit by some ...
2
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45 views

Noise inside an ACES/pumpkin suit helmet?

As I understand it there was plenty of noise inside a NASA EVA suit helmet from fans circulating the air. Was the Advanced Crew Escape Suit helmet for launch and reentry similarly noisy?
2
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0answers
78 views

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 ...
2
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1answer
213 views

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 ...
1
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67 views

IVA space Suit leakage

What is the allowed suit leakage for Sokol suit at 40kPa/5.8 psi. What is the allowed leak rate in IVA shuttle suits at 24 kPa/3.5 psi. What is the allowed leak rate from IVA suit helmet
1
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75 views

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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28 views

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 ...
0
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80 views

Best (least worst) conditions to “store” an astronaut in a suit for six days?

@GremlinWrangler's answer to How can an Astronaut survive for six days inside a Spacesuit? includes the following: make sure the suit can provide air and water, and adjust the temperature to ...