The GFAJ-1 microoorganism was cultured and discovered by Felisa Wolfe-Simon, a NASA astrobiology fellow in residence at the US Geologic Survey in Menlo Park, California. The organism was isolated and cultured beginning in 2009 from sediments she and her colleagues collected along the shore of Mono Lake, California, U.S.A.[2] Mono Lake is hypersaline and highly alkaline. It also has one of the highest natural concentrations of arsenic in the world (200 μM).[3] The discovery was widely publicized on December 2, 2010.
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