34 votes
Accepted

Can you vacuum out the ISS by opening the door?

Because of boundary conditions, despite a massive "woosh" of air from rapid depressurization, the velocity of air near walls and other rigid surfaces approaches zero. The highest velocity of air ...
Nick T's user avatar
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27 votes

Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?

When you have gravity heavy particulates like shavings, crumbs, large dust granules, etc. will fall to the ground where they can be cleaned or form part of the environment. In microgravity everything ...
GdD's user avatar
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20 votes

Can you vacuum out the ISS by opening the door?

It would be extremely difficult to open the outer airlock hatch if the inner airlock hatch is open because the outer hatch opens inward, and there are tons of pressure force holding it closed. ...
Organic Marble's user avatar
18 votes

Can you vacuum out the ISS by opening the door?

Opening the hatch might get rid of most of the loose rubble (minus everything that gets swept along, then slams into a wall), but that's not enough. Any gunk that sticks to a surface is likely to ...
Hobbes's user avatar
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12 votes
Accepted

Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?

Getting dust in one's eyes is a mild inconvenience at best. However, what happens if the dust particle lodges itself in a person's eye just when that person needs to do something critical? What ...
Fred's user avatar
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12 votes
Accepted

Can the vacuum of space be used to sterilize equipment?

Can the vacuum of space be used to sterilize equipment? Supposing that washing dishes and sterilizing medical equipment could be expensive to do in space, would a viable option be to expose dishes, ...
Rob's user avatar
  • 3,276
10 votes

When did astronauts/cosmonauts start cleaning and vacuuming space stations?

For the US space program, it started in Skylab. Vacuuming of the Orbital Workshop mixing chamber screen, the waste management compartment screen, and other environmental control system screens was ...
Organic Marble's user avatar
9 votes

How is the space station's interior cleaned?

The Space Station's Environmental Control and Life Support System eliminates much of the dust and other particulates from the breathing atmosphere via HEPA filters. It also removes water vapor, ...
David Hammen's user avatar
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8 votes

Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?

Dust will damage machinery through more than just conducting electricity or hindering passive cooling. Fans in particular are vulnerable. Dust can slow down fans by adding weight to the blades or ...
bta's user avatar
  • 281
6 votes

Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?

AFAIK, the main problem is static electricity, dust tends to stick to everything with a minimum charge, my personal guess is that if not properly handled the ventilation system could make it worse ...
luiscla27's user avatar
  • 161
5 votes

Can the vacuum of space be used to sterilize equipment?

There's an interesting article on phys.org, today, about the BIOMEX experiment on the ISS. The tests involved samples of different organisms such as bacteria, algae, lichens and fungi being ...
Dave Gremlin's user avatar
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3 votes

"grease" like substance in Space

A definition of grease is that it's carbon based. Carbon provides a junction to make billions of compounds with the solubility and flexibility of water and the diversity of minerals, so it can make ...
bandybabboon's user avatar
3 votes

"grease" like substance in Space

I don't know of anything which is a perfect match to your description, but I can think of two possibilities which are close: First, space weathering is an important and more-or-less continuous ...
Mark Olson's user avatar
1 vote

When did astronauts/cosmonauts start cleaning and vacuuming space stations?

Partial as short of time, will add later: This is partially useful: (describes cleaning in both Skylab and Salyut) https://www.google.co.uk/books/edition/Architecture_for_Astronauts/8RWKOxH1c8sC?hl=en&...
blobbymcblobby's user avatar

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