Re: Life in caves


"Tom Hendricks" <tom-hendricks@xxxxxxx> wrote in message
news:ginep2$11tb$1@xxxxxxxxxxxxxxxxxxxxxx
On Dec 21, 2:04=A0am, Tim Tyler <seemy...@xxxxxxxxxxxxxx> wrote:
"Penelope Boston: Life on Mars? Let's look in the caves"

=A0-http://uk.youtube.com/watch?v=3DNWvXyobH9fg

I share Penelope's interest in caves - for me they represent a
possible OOL location.
--
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=A0|im |yler =A0http://timtyler.org/=A0t...@xxxxxxxxxxx =A0Remove lock to
reply.

She's a very fine speaker and I enjoyed her talk.
But I think that because we are discovering new life zones on earth -
under sea vents, caves, underground below the seas, etc.. we are in
the mindset that life is everywhere.
But that's just a phase we are going through because of all these new
discoveries. I think it's doubtful that we will find
life anywhere else in our solar system.
Finding HOW life started will help. I see it as a response to the sun
cycle. (That probably rules out Mars and surely Europa.)
Life is so clearly a mimic of the sun cycle. I see the sun cycle in
energy in / waste out ,the
key aspect of life. That is sun hot and shining, night cold and sun
not shining. That is what life has adapted to.
I don't see how anyone can miss the obvious.

That rules out the OOL in caves or under the sea , or outside the HZ
for me.


I must say this is something I have spent considerable time pondering. The
only way I can see life spreading to other bodies of the Solar System in the
past is through the meteorite impactor hypothesis, where a very large
impactor like Chixilub splashes crustal material so hard that some of it
achieved escape velocity and departs the Earth/Moon system. If a random
rock were flung away and landed on Mars there is a remote possibility that
microscopic life might have transferred with it. If it happened during the
Martian wet period then such a transfer would probably flourish. However by
this point you have stacked remote probability events one atop another like
a house of cards. Is it possible? Yes, but is it probable? No, not
probable at all.

--
Always appeal to a man's enlightened self interest, you can trust him to
look out for himself honestly,
It's when you appeal to his Honor or the Common Good that he stops paying
attention.



.

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