On 8月11日, 上午11時54分, Wretch Fossil <wretchfos...@gmail.com> wrote:

Amino acid molecules produced in the lab are 50% left handed and 50%
right handed. However, amino acid molecules produced in animal bodies
are over 50% left handed. This difference is a sure sign of life (note
1). This sign of life is found in organic molecules in meteorites
(note 2). So, organic molecules in meteorites are post-biotic
fossils.

Note 1: “Homochirality probably constitutes the most reliable
indicator of the biological vs. abiotic origin of organic molecules.”http://www.esa.int/SPECIALS/ExoMars/SEMK39JJX7F_0.html

Note 2: “In the new research, the team reports finding excess left-
handed isovaline (L-isovaline) in a much wider variety of carbon-rich
meteorites.”http://www.nasa.gov/topics/solarsystem/features/left_hand_aminoacids....

New edition:

Amino acid molecules produced in the lab are 50% left handed and 50%
right handed. However, amino acids in fossils can be uneven-handed
(over 50% left-handed, for example). This unevenness or excess of left-
handed amino acids is a sure sign of past life (note 1). This sign of
past life is found in organic molecules in meteorites (notes 2, 3).
So, organic molecules in meteorites are post-biotic fossils.

Note 1: “Homochirality probably constitutes the most reliable
indicator of the biological vs. abiotic origin of organic molecules.”
http://www.esa.int/SPECIALS/ExoMars/SEMK39JJX7F_0.html

Note 2:"Fragments of the Tagish Lake meteorite contain amino acids
that are predominantly left-handed, as in life."
 http://www.panspermia.org/whatsnew65.htm#110613

Note 3: “In the new research, the team reports finding excess left-
handed isovaline (L-isovaline) in a much wider variety of carbon-rich
meteorites.”
http://www.nasa.gov/topics/solarsystem/features/left_hand_aminoacids.html

All my articles are at http://www.wretch.cc/blog/lin440315&category_id=0