Skip to main content
31 votes

Why is it so hard to build a closed-loop ecological life support system?

It is not so much 'hard' as it is an expensive area of research that is challenging to justify funding for. Biosphere 2 proved a number of things, some of them about humans but but most significantly ...
GremlinWranger's user avatar
29 votes
Accepted

Why is it so hard to build a closed-loop ecological life support system?

To answer another facet of your question that others have looked over, is the question of why it is so easy to do with much smaller "ecosystems in a jar". You would think a larger system ...
Anthony Khodanian's user avatar
4 votes

Can you enjoy a cold carbonated drink in space?

Answer: Yes, but fizzy drink consumption needs special considerations. Explosive Decompression. The drink would "boil off explosively" only in a vacuum, but not inside the ISS pressure hull. ...
Woody's user avatar
  • 21.6k
3 votes

Why is it so hard to build a closed-loop ecological life support system?

I suspect that the main problem is lack of knowledge concerning all of the possible feed back loops that might occur under different circumstances and all of the possible interactions and competitions ...
Slarty's user avatar
  • 9,333
2 votes

Most energy efficient food production for sustainable human life support

To answer this question, we first need to consider what is needed to sustain people in space. If we assume that we can't limit our crew to keto eaters, then (according to a presentation by Bryce Meyer ...
phil1008's user avatar
  • 4,556
1 vote

Why is it so hard to build a closed-loop ecological life support system?

Answer: Because the biochemistry of life is really, REALLY complicated. Spacecraft engineering, by comparison, is really easy. Engineers can design systems which are isolated from each other and are ...
Woody's user avatar
  • 21.6k

Only top scored, non community-wiki answers of a minimum length are eligible