IIRC, organic molecules found in meteorites & such are a mix of left
and right handed forms, and therefore the product of chemical
processes, not biological. Organic molecules from biological
processes on Earth are all the same "handedness" (as I recall we have
righted handed sugars and left handed proteins, or maybe the other way
round). Organic molecules on the moon doesn't imply life there unless
and until they can be shown to be "handed".
2009/12/19 Helge Moulding <[log in to unmask]>:
> On Wed, Dec 16, 2009 at 1:16 PM, "Rex Anderson" <[log in to unmask]> wrote:
>> Hmmmmm. This article is interesting, but it also calls up the cynic in me.
> Amino acids form in space - we've detected them as components in
> clouds of interstellar dust. How are the amino acids found in lunar soil
> different enough to make us suspect they're the product of life? (On the
> other hand, maybe the amino acids found in space are the product of
> So even when we think we found signs of (past) life, it may turn out that
> there are non-life processes that produce the same signs. The only thing
> that will settle a question like that is coming across a living organism.
> And even then folks are bound to argue about where it came from.
> Helge Moulding
> mailto:[log in to unmask] Just another guy
> http://hmoulding.cjb.net/ with a weird name
I am a Statistician. One False move and you're a Statistic.