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Astrobiology Discovery Arsenic Microbe Found in Lake NASA news

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Uploaded on Dec 1, 2010

http://www.dailymail.co.uk/news/artic... http://www.youtube.com/watch?v=ewoxk8...

To update, the arsenic microbe was created on purpose as a test of how life could form from elements not formed by any type of life on Earth! In this case, arsenic replaces phosphorus as the building block of dna and rna, the structures that carry the genetic instructions for life, and is considered an essential element for all cells! If life can form with this one change, there could be thousands or millions of other combinations to create a life form in millions of different conditions in the universe! Big news!

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