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Old 04-23-2016, 10:04 AM
 
1 posts, read 368 times
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What they are attempting is to cycle around all the oxygen to breathe. At the moment they lose a lot of the oxygen into space as CO or CO2; in future, they could convert that to methane and lose only carbon and hydrogen and cycle around the oxygen. They’re also attempting to grow all their food and to use 3-D printers to make some of the replacement parts. They are not attempting to remake complex things like space suits in space. A space suit takes months to build by skilled people and costs millions of dollars to build it on Earth with all our facilities. At present, it's not likely that we can build them in space with 3-D printers. If we could, we could build them on Earth with 3-D printers far more easily, and the price would drop to just the cost of the materials. The idea of self-sufficient space colonies that could make everything in space—including space suits, cooling systems, environment control, meteorite shields, air locks, venting, systems to stop buildup of various poisonous gases and microbes, and so on—without relying on Earth industry is way into the realms of science fiction at present. Remember, if you could do that, you could also do the same, in, say, the Sahara, Siberia, or Alaska far more easily, as you don't need to make your own air to breath there. Then, they could make all their food as well, using the recycled CO2 to grow plants or microbes. They are actually hope to be able to print out copies of some replacement parts in the future, which could be useful if a vital piece of equipment fails on a long journey. But they don’t aim to make everything that way. Certainly not the spacesuits and the electronics and all the complex materials. The idea of self sufficient space colonies that could make everything in space, including those expensive and complex spacesuits - and cooling systems, environment control, meteorite shields, air locks, venting, systems to stop build up of various poisonous gases and microbes etc etc - the idea you could build all that in space without relying on Earth industry is way into the realms of science fiction at present.
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Old 06-10-2016, 05:58 PM
 
Location: S. FL (hell for me-wife loves it)
3,300 posts, read 2,116,356 times
Reputation: 10177
sammaya_ansari, you need to learn how to parse your thoughts...ie: make paragraphs, no one is going to want to read that
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Old 06-14-2016, 03:40 PM
 
Location: Birmingham, Alabama
2,056 posts, read 2,025,217 times
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I'd like to see the colonization of Mars start without sending people there. We've landed rovers there, and they have shown to be able to do their job. They transmit information to us still. The first operations there would be to set up the world that humans would go to. It would be exiciting to follow it through as it goes along. Building materials go first. things to settle the land, like small machines built to turn soil, etc. Once all the materials for building are there, at significant cost, we can do the most costliest part of the mission: shipping people there to go to work. And i don't mean 2 guys. i mean people who will not be coming back. At least for a very long time. I think it's worth considering whether we will want humans to reproduce there as well. THOSE offspring will be the first extraterrestrials that we have known.
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Old 06-14-2016, 06:46 PM
 
Location: Somewhere in northern Alabama
18,546 posts, read 55,477,958 times
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Send cockroaches. If there is a way to survive, they will. If we blow ourselves up before we colonize in earnest, then a hundred thousand years from now some cockroach scientist will be praising our foresight.
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