From: UFO UpDates - Toronto <post.nul> Date: Tue, 19 Jun 2012 07:20:59 -0400 Archived: Tue, 19 Jun 2012 07:20:59 -0400 Subject: Primordial Soup May Be Alien Concoction Source: The Telegraph - London http://tinyurl.com/csxsntm June 19th, 2012 Why The Primordial Soup May Be An Alien Concoction By Tom Chivers The discovery of 'extremophiles' strengthens the theory that life was 'delivered' from other planets In August, Nasa's Curiosity rover, the largest and most expensive robot ever to be sent to the surface of another planet, will arrive on Mars. It has several goals, including studying the climate and geography of the Red Planet, and providing information for a possible future manned mission. But Curiosity will also be looking for signs of life and clues as to where, as well as how, life began - still one of science's greatest unsolved mysteries. Ever since Charles Darwin suggested that life may have begun in a "warm little pond", the idea of the primordial soup has taken hold in the public and scientific imagination. The hypothesis states that the chemical building blocks of life mixed together until a chance event combined them into a replicating being. That replicator, which would have "lived" around four billion years ago, is the great-to-the-Nth-power grandparent of every organism. The primordial soup explanation has had rivals, but most of them centre around a similar idea: a replicating process starts on Earth, and once it is up and running, Darwinian evolution acts on the offspring of that original ur-organism. In his book The Blind Watchmaker, Richard Dawkins championed Graham Cairns- Smith's theory that clay crystals, which preserve information as they grow from solution, were the first replicators; Nick Lane, a biochemist at University College London, proposes that they arose by a hot vent (rather than a warm pond) in the deep ocean. [More at site... thanks to Diana Cammack for the lead] Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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