Astrobiologists: Deadly Arsenic Breathes Life Into Organisms
Thursday, December 2, 2010 - 17:00
in Biology & Nature
Evidence that the toxic element arsenic can replace the essential nutrient phosphorus in biomolecules of a naturally occurring bacterium expands the scope of the search for life beyond Earth, according to Arizona State University scientists who are part of a NASA-funded research team reporting findings in the Dec. 2 online Science Express.