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post #21 of 152
11/8/12 at 3:36pm
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Quote:
Originally Posted by EniGma1987 View Post

Just because humans require specific things to support our life doesnt mean that if aliens exist that they require the exact same things. For all we know, there could be thousands of other lifeforms out there and we might be the only ones who even breathe oxygen. Not everything is required to conform to the was humans are.

Oxygen is mostly needed to burn sugar and produce energy for us. If you don't have oxygen, you can't live. Period.
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post #22 of 152
11/8/12 at 3:40pm
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Quote:
Originally Posted by Snowmen View Post

Oxygen is mostly needed to burn sugar and produce energy for us. If humans don't have oxygen, humans can't live. Period.

Fixed
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post #23 of 152
11/8/12 at 4:07pm
Quote:
Originally Posted by andrews2547 View Post

That's ridiculously close actually. Unfortunately at current speed of out space craft, the quickest one (50,000 miles per hour) would take just over 56,000 years to get there.
That is if I worked it out correctly tongue.gif

'Helios 2 probe' (Though it was an unmanned aircraft) has reached at a speed of 157,078 miles/h on 17 April 1976.

http://en.wikipedia.org/wiki/Helios_probes
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post #24 of 152
11/8/12 at 4:08pm
How crazy would it be if it went through evolution the same as earth and is inhabited by humans.
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post #25 of 152
11/8/12 at 4:21pm
Quote:
Originally Posted by Stuuut View Post

First precursors to life is life right? I don't expect to see humans living there.

He means molecular precursors, like amino acids and nucleic acids (DNA or RNA). In no way is a single DNA molecule "life" by any stretch of the definition tongue.gif
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post #26 of 152
11/8/12 at 4:29pm
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Quote:
Originally Posted by Snowmen View Post

Oxygen is mostly needed to burn sugar and produce energy for us. If you don't have oxygen, you can't live. Period.

http://en.wikipedia.org/wiki/Anaerobic_organism

The first life forms on this planet were anaerobic because there was little to no O2 in the atmosphere.
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post #27 of 152
11/8/12 at 4:30pm
Quote:
Originally Posted by Snowmen View Post

Oxygen is mostly needed to burn sugar and produce energy for us. If you don't have oxygen, you can't live. Period.

Oxygen is better described as an electron acceptor. We use three different methods of cellular respiration (aerobic being the primary), but "sugar" is a storage molecule for AMP, ADP, and ATP to push heat. I would recommend that you look at the cellular respiration of deep sea animals (reproductive cycle being the animal qualifier), and find that not all animals require oxygen for cellular respiration.

As far as the OP reference, if the planet looks like the picture, then there is most certainly (>95%) life. But as others have stated, what would the goal be to travel there unless we could use the resources available. Vch similar to early spread of our own population.

EDIT: Corrected (TY aroc91), I was having a moment of disclarity.
Edited by siggie30 - 11/8/12 at 4:36pm
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post #28 of 152
11/8/12 at 4:32pm
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Quote:
Originally Posted by siggie30 View Post

Oxygen is better described as an electron donor. We use three different methods of cellular respiration (aerobic being the primary), but "sugar" is a storage molecule for AMP, ADP, and ATP to push heat. I would recommend that you look at the cellular respiration of deep sea animals (reproductive cycle being the animal qualifier), and find that not all animals require oxygen for cellular respiration.
As far as the OP reference, if the planet looks like the picture, then there is most certainly (>95%) life. But as others have stated, what would the goal be to travel there unless we could use the resources available. Vch similar to early spread of our own population.

Electron acceptor, not donor.
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post #29 of 152
11/8/12 at 4:34pm
Quote:
Originally Posted by pratesh View Post

I should be dead by this time or a very old man, so I'm safe, but isn't it possible that we are looking for life without taking into consideration that if we do find life, they might be hostile. Scifi anyone? Still the prospects of finding life, even if they want to kill us excites me. thumb.gif

They couldn't be any more hostile than humanity is!
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post #30 of 152
11/8/12 at 4:58pm
Quote:
Originally Posted by sebkow View Post

42 years untill we find out i suppose

I see what you did there.
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