Stig Östlund

torsdag, december 02, 2010

Newly discovered Arsenic-based microbe raises possibility of new types of life on Earth, or elsewhere

The discovery of a strange bacteria in Mono Lake, Calif., that can use arsenic as one of its nutrients has caused scientists to broaden their idea of how life can form on Earth and possibly beyond.

Six major elements have long been considered essential for life -- carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.
But the researchers found that the bacteria, discovered in Mono Lake, Calif., is able to continue to grow after substituting arsenic for phosphorous.
NASA will formally announce the discovery today at an 11 a.m. news conference in
Washington. /Los Angeles Times

Full story:    http://www.latimes.com/news/science/la-sciw-arsenic-microbe3-20101103,0,1993684.story

NASA:  NASA-Funded Research Discovers Life Built With Toxic Chemical

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