Thu, 16 Dec 2010 23:00:12 +0100 (AFP/File) - NASA-funded researcher Felisa Wolfe-Simon, pictured on December 2, whose discovery of a bacterium that thrives on arsenic prompted an avalanche of criticism responded Thursday with a statement answering questions about her research.(AFP/File/Jewel Samad)
Felisa Wolfe-Simon, NASA astrobiology research fellow, speaks ...
Thu, 02 Dec 2010 23:00:11 +0100 (AFP/Getty Images) - Felisa Wolfe-Simon, NASA astrobiology research fellow, speaks during a news conference at NASA Headquarters to announce a finding a potential new form of life in Washington, DC. Wolfe-Simon said that after a two year study at California lake, she found that a bacterium that could eat and grow on arsenic instead of phosphorous, one of the basic building blocks of life.(AFP/Getty Images/Mark Wilson)
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