/u/Olly230's posts in /r/askscience

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What percentage oxygen would mars need to have to support humans at its current atmospheric density?

154 upvotes

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Would it be possible with today's technology and unlimited money to land an asteroid on earth?

1 upvotes

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If rocket boosters use liquid hydrogen and oxygen is it possible/feasible to reclaim the water?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What percentage oxygen would mars need to have to support humans at its current atmospheric density?	154
Would it be possible with today's technology and unlimited money to land an asteroid on earth?	1
If rocket boosters use liquid hydrogen and oxygen is it possible/feasible to reclaim the water?	1