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PostPosted: Tue Oct 03, 2017 4:33 pm 
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Joined: Mon Jan 09, 2006 11:05 am
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Location: Lancashire
Darwin's hypothesis about life arising in "little warm ponds" might now have become fact. Scientists now claim that meteorites splashing into warm puddles, bonded molecules to form RNA molecules that became the first genetic code for life. Scientists believe the event occured some 4 billion years ago.
Their findings are published in the journal "Proceedings of the National Academy of Science. The researchers at MacMaster University in Canada and the Max Planck Institute in Germany claim to have proved their theory through extensive calculations.
Fed Pearce, the study's lead author, said: "No one has actually run the calculation before. This is a pretty big beginning. It's pretty exciting. That's the Holy Grail of experimental-origins-of-life chemistry."
Co-author, Ralph Pudritz, added: " Because there are so many inputs from so many fields, it's amazing that it all hangs together. Each step led very naturally to the next. To have them all lead to a clear picture in the end is saying there's something right about this."
A previous theory was that space dust could have contained the source of the nucleotides necessary for life, but the researchers say that, although space dust did contain the right sort of materials, they weren't in a high enough concentration.
Next year the researchers hope to test their theory by replicating the pre-life conditions in a sealed laboratory.

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PostPosted: Tue Oct 03, 2017 9:17 pm 
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Joined: Thu Jun 02, 2016 11:32 am
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Location: New Farnley, Leeds lat 53.8N long 1.6W
My 2 year old granddaughter loves splashing in puddles. It must be a kind of subconscious
return-to-the-puddle thing. I wonder if the life starting meteorites were wearing yellow wellies.
Blob


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