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Interstellar Travel - Possibilities and Human Physiology

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Author Topic:   Interstellar Travel - Possibilities and Human Physiology
NosyNed
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Posts: 9004
From: Canada
Joined: 04-04-2003

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Message 8 of 63 (504063)
03-24-2009 11:57 AM 		Reply to: Message 6 by Taq
03-24-2009 11:51 AM

Relativistic H and Dust
There are small amounts of interstellar hydrogen, not to mention micrometeors in the Oort clouds and other small dust particles. This would produce drag, but I don't know if it would be significant at relativistic velocities.
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I don't know about 'drag' from them but they do become significant at near c speeds. They become high energy cosmic rays and micrometeors become massive bullets.
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NosyNed
Member
Posts: 9004
From: Canada
Joined: 04-04-2003

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Message 14 of 63 (504088)
03-24-2009 2:45 PM 		Reply to: Message 13 by Taq
03-24-2009 1:54 PM

Oxygen, Bzzzzz
It's actually simpler than that. In order for a planet to be habitable it must have oxygen.
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I'm guessing that you mean habitable by us because otherwise your statement is wrong. There is life now (inhabitants) on earth that doesn't need oxygen at all (the opposite in fact). It maybe that to have life more complex than single celled you need oxygen but that is not for sure either.
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