Saturday, December 4, 2010

Life in Arsenic?

Mono Lake California

All life as of 2 days ago contained 6 fundamental elements; hydrogen, nitrogen, sulfur, carbon, oxygen, and phosphorus. Yesterday researchers at NASA found a microbe in Mono Lake which is located in northern California. Mono lake gets its water from the Sierra Nevada mountains.  These mountains have relatively high concentrations of arsenic so when the water comes from these mountains so does arsenic. 
Mono lake is where the arsenic concentrates to 700 times what the EPA considers safe.
These are no ordinary microbes. In fact in the DNA of these microbes, arsenic is taking the place of phosphorus something that nobody has ever seen. 

This opens a whole new suite of planets when you are searching for life on other worlds. This is just 1 of 6 elements that may be replaced by other elements we might not have discovered yet.

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