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Comet contains glycine, but so what?

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Comet 67P on 19 September 2014 NavCam mosaic.jpg
67P/Churyumov–Gerasimenko /ESA,Rosetta,NAVCAM

From Phys.org:

An important amino acid called glycine has been detected in a comet for the first time, supporting the theory that these cosmic bodies delivered the ingredients for life on Earth, researchers said Friday.

Glycine, an organic compound contained in proteins, was found in the cloud around Comet 67P/Churyumov-Gerasimenko by the European Space Agency’s probe, Rosetta, said the study in the journal Science Advances.

That said,

Previous data from Rosetta has shown that water on Comet 67P/C-G is significantly different from water on Earth, suggesting that comets did not play as big a role in delivering water as once thought.More.

Our favourite physicist Rob Sheldon thinks comets played a role, and that sounds reasonable.

The big problem is that researchers seem to be trying to figure out how life originated absolutely by chance, without any information input, which seems unlikely. Raises the question, how many frybrained theories must we endure before coping with the basic problem: Too much information, too little time?

See also: Maybe if we throw enough models at the origin of life… some of them will stick?

and

What we know and don’t, know about the origin of life

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3 Replies to “Comet contains glycine, but so what?

  1. 1
    Blas says:

    Did they say if it is racemic or one enantiomer?

  2. 2
    awstar says:

    Here’s an explanation as to why there is glycine in comets.

    http://creationscience.com/onlinebook/Comets8.html

    Not many folk will pay attention to it however, because the explanation is based on a presupposition that the Biblical account of the Flood in Genesis is an accurate history. That contingency is too dangerous to choose from any constrained list of possible explanations.

  3. 3
    bornagain77 says:

    Amino acids (except for one, glycine) come in pairs, Left handed and right handed.
    http://www.evolutionnews.org/2.....02873.html

    “Another conclusion from this paper is that homochirality as observed in life is contingent: i.e., it could exist in the opposite mirror-image form. There is no chemical or thermodynamic reason why proteins must be left-handed as opposed to right-handed, or why nucleic acids must be right-handed as opposed to left-handed. The experiments show that chemical reactions can proceed just as well in a mirror-image world. When a choice has been made one way to the exclusion of other possibilities, and it is beyond the reach of chance, it gives indication that intelligence has embedded information into the system.

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