Looks like we`re still looking for earthly life forms on other planets
In late 2010, NASA set the Internet buzzing when it called a press conference to discuss an astrobiological finding that would impact the search for extraterrestrial life. Many speculated that some primitive life had been found on Mars or one of Saturns moons. But the evidence was found on Earth; a strain of bacteria in Californias Lake Mono that had arsenic in its genetic structure. The discovery implied that life could thrive without the elements NASA typically looks for, mainly carbon and phosphorous. But now, a new study challenges the existence of arsenic-based life forms. ...
Source: PhysOrg - Thursday, 2 February
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