"The definition of life has jus expanded" said Ed Weilerm NASA's associate administrator for the Science Mission Directorate at the agency's Headquarers in Washington.
Researchers conducting tests in the harsh environment of Mono Lake in California have discovered the first known microorganism on Earth able to thrive and reproduce using toxic chemical arsenic. More on NASA.gov (pictures of Mono Lake and microorganisms GFAJ - 1) (Image credit: Jodi Switzer Blum).
