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42 votes

Why aren't there any active space debris removal systems implemented currently?

Removing debris costs money. Even with many words like "efficient", "low-cost", and so forth, a system capable of removing a significant amount of space debris still involves a budget requirement ...
SE - stop firing the good guys's user avatar
10 votes

Harpooning satellites? Is this really the best way to get them under control?

This answer responds to the title question "Harpooning satellites? Is this really the best way to get them under control?". I've studied this problem, the answer is "no", based on this rationale: ...
Puffin's user avatar
  • 9,654
7 votes

Harpooning satellites? Is this really the best way to get them under control?

The RemoveDebris mission is a low-cost, small mission to demonstrate 4 key technologies needed for removal of large space debris (i.e. defunct satellites). Surely large modern spacecraft have ...
Hobbes's user avatar
  • 128k
7 votes

Orbit Guardians - bs, right?

I'm not sure what altitude they are aiming for at periapsis, but the $\Delta V$ to go from an 800x800km to 800x100km orbit is 194 m/s, and the $\Delta V$ to go from a 900x900km orbit to a 900x50 km ...
Paul W's user avatar
  • 721
5 votes

How can we see RemoveDebris capturing a satellite with a net?

The raw video is available here and there's some more context in the video in this tweet.
Almoturg's user avatar
  • 163
3 votes

How do we ensure that during reentry or descent of spent stages, it doesnt hit any aircraft or incoming rocket?

In the United States, people who want to launch things into space need to apply for a license from the Federal Aviation Administration (FAA), in accordance with the Combined Federal Regulations (CFR) ...
Ryan C's user avatar
  • 7,972
2 votes

Space Debris? Gecko toes to the rescue?

The following is a partial answer - I say this as even by 2021, it seems it is not mature enough to have been scaled up to that projected size - yet. The first paper below is looking at scaling up. ...
blobbymcblobby's user avatar
2 votes

Orbit Guardians - bs, right?

Sounds perfectly plausible. As the other answers have shown, you need roughly 200 m/s delta V to reliably and quickly deorbit such a droplet. For every gram of mass in a droplet, you need to deliver ...
TooTea's user avatar
  • 1,765
2 votes

Orbit Guardians - bs, right?

Orbit Guardians - bs, right? Scary? Yes! But no, not necessarily 100% bs. Answers to How hard do you have to throw something off the ISS to make it deorbit? are in the "ballpark" of 90 m/s (...
uhoh's user avatar
  • 149k
1 vote

Satellite decommissioning and space debris removal

Something like the D3 system you linked to is completely different from something to handle debris - it's a mechansim for planned disposal of a spacecraft (ie prevention of junk/debris rather than ...
motosubatsu's user avatar

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