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A comment on Organic molecule compositions in samples of asteroid Ryugu. Parent comment

Re:Organic molecule compositions in samples of asteroid Ryugu by doitLP on Saturday February 25, 2023 @07:40AM (#34936211)
How can we be sure it’s of abiotic origin?
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Re:Organic molecule compositions in samples of asteroid Ryugu by nicolaslegland on Saturday February 25, 2023 @07:56AM (#34936307)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027462/ TL;DR: Biotic implies L-chirality. Ryugu exhibits balanced chirality.
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Re:Organic molecule compositions in samples of asteroid Ryugu by kevviiinn on Saturday February 25, 2023 @08:04AM (#34936356)
Earth biotic origin implies L, I think it is theoretically possible if life developed elsewhere that other enzymes may preference R. AFAIK our enzymes are generally conserved throughout life
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Re:Organic molecule compositions in samples of asteroid Ryugu by madaxe_again on Saturday February 25, 2023 @08:55AM (#34936683)
Indeed. Asimov’s “Left hand of the electron” has an essay which explores and explains why life inevitably ends up with a chiral preference.
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Re:Organic molecule compositions in samples of asteroid Ryugu by _a_a_a_ on Saturday February 25, 2023 @08:06AM (#34936369)
"Biotic implies L-chirality" on this planet sure, but it's one data point to extrapolate from. It's not enought.
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Re:Organic molecule compositions in samples of asteroid Ryugu by nicolaslegland on Monday February 27, 2023 @04:57AM (#34954687)
This is the data point we discuss panspermia vs abiogenesis upon, R-chirality couldn't have spawned the L-chirality lineage here.
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Re:Organic molecule compositions in samples of asteroid Ryugu by dvh on Saturday February 25, 2023 @08:26AM (#34936491)
>left and right structures were present at approximately 1:1
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