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<7fa07339-9cc9-4a73-809e-c8fda473dd18n@googlegroups.com> ccdfec54
@REPLYADDR Chris L Peterson
<clp@alumni.caltech.edu>
@REPLYTO 2:5075/128 Chris L Peterson
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On Thu, 14 Sep 2023 07:13:43 -0700 (PDT), StarDust <
csoka01@gmail.com>
wrote:
>On Thursday, September 14, 2023 at 6:25:29?AM UTC-7, Chris L Peterson wrote:
>> On Thu, 14 Sep 2023 10:25:49 +0100, Martin Brown
>> <```newspam```@nonad.co.uk> wrote:
>>
>> >On 13/09/2023 04:07, StarDust wrote:
>> >> On Tuesday, September 12, 2023 at 7:39:19?PM UTC-7, RichA wrote:
>> >>> On Tuesday, 12 September 2023 at 21:56:06 UTC-4, StarDust wrote:
>> >>>> BBC News - Tantalising sign of possible life on faraway world
>> >>>>
https://www.bbc.co.uk/news/science-environment-66786611
>> >>>>
>> >>>> Never heard before about this DMS molecule, only life can produce?
>> >>>> 120 light years away, too far away I think?
>> >>> They only used about three "may bes" in that article meaning...may be.
>> >>> Right now, the best bet is an ocean on a gas-giant`s moon
in our solar system.
>> >>
>> >> Yes, but ocean alone don`t generate DMS, it needs life, like plankton!
>> >
>> >Plankton and coloured photosynthetic slimes of various sorts might well
>> >be ubiquitous on any planets with all three phases of water present.
>> >Life evolved to that state very quickly on Earth but then didn`t do much
>> >for 1.5-2 bn years (about half of the planets lifetime).
>> My guess is that simple life is ubiquitous on planets with liquid
>> water. And simple multicellular life, as well. But complexity probably
>> requires a high degree of planetary stability, meaning a star in a low
>> density region of the galaxy, a star that itself is very stable, a
>> planetary system with only a few planets, a planet with a very large
>> moon, maybe some other factors, all of which drive down the number of
>> suitable planets significantly.
>
>Yes, a planet like ours, with a big Moon, stabilizing it.
>I read, Mars never had a large moon, so it`s axis swing, wobble 90 degrees.
>That`s why life never could form on Mars, very unstable.
Life could form on Mars (if it had liquid water). But likely not very
complex life.
--- Forte Agent 6.00/32.1186
* Origin: Forte - www.forteinc.com (2:5075/128)
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