via Slice of SciFi by Michael Hickerson on 12/3/10
To quote the song "Star Trekkin'," "It's life, Jim, but not as we know it." NASA has found a new form of life. But it wasn't in the distant reaches of outer space. It was here on our home planet of Earth. NASA revealed yesterday the discovery of a bacteria in a mud sample from California's salty Mono Lake that is the first-known organism to use arsenic in its basic metabolism and genes.