Questions tagged [eva]

Questions regarding extra-vehicular activity, or EVA, during space exploration.

13 questions with no upvoted or accepted answers
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7
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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 ...
6
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0answers
83 views

Are the Electronic Tools used in the ISS and in the NBL same or different?

Most of the time, we see astronauts carrying electronic tools like power drills during an EVA. They undergo training in the Neutral Buoyancy Lab (NBL) for the same. Are the electronic tools used in ...
5
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0answers
150 views

How many female astronauts have worn the large space suit on a space walk?

The recent all-female spacewalk was canceled because Anne McCain felt the medium sized suit was the correct choice for her for safety reasons, and there weren't enough medium sized suits. Of course, ...
5
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0answers
68 views

How frequenty have space walkers been changed based on space suit configuration?

On Friday, March 29, two astronauts were supposed to conduct what would have become the first all female space walk, Christina Koch and Anne McClain. After her first space walk on March 22, Anne ...
3
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0answers
43 views

Does reflected sunlight from the ISS prevent astronauts from seeing the stars during an EVA?

I'm assuming during an EVA when an astronaut is facing the station reflected sunlight reduces an astronaut's dark adapted vision to the point they can no longer see the stars until either the station ...
3
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0answers
115 views

Did the Apollo astronauts hear any external sounds during a lunar EVA?

Did any sounds resonate through their boots or any part of their environmental suit? Could they hear the folding or rubbing of the material of their suits? Did anything impact their boots that might ...
3
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0answers
785 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 ...
2
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0answers
133 views

Had Apollo astronauts practiced getting up from a fall?

The question "Could an Apollo astronaut stand up if they fell on the moon?" describes several incidents of Apollo astronauts falling over while on the moon, and their attempts to get back up. Did the ...
2
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0answers
311 views

Were there ever any accidents involving cold-welding on EVA?

I recall there were cases of mechanisms of spacecraft that failed due to cold-welding, but are there any records of accidental cold-welding on EVA? of e.g. an ill-prepared tool cold-welding to a part ...
2
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0answers
152 views

Why are crew EVA cuff checklists wrapped in Kapton tape?

As seen in this image below, the cuff checklists have Kapton tape wrapped around their edges. What is the reason for this?
2
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1answer
198 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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0answers
71 views

Can astronauts on an EVA communicate directly with ground stations?

Can astronauts/cosmonauts performing spacewalks at the International Space Station communicate directly with radio stations on the ground (even if only as a back-up)? Or do they need to relay their ...
0
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0answers
72 views

What is this NASA Spaceflight article trying to explain?

The NASA Spaceflight article Extended Russian EVA complete – conducts satellite deployments contains a very long discussion about the timing of the CRS-12 launch. Had it missed the "single shot launch ...