Widely panned arsenic life paper gets retracted—15 years after brouhaha
In December 2010, a study led by a NASA astrobiology fellow claimed to have found an alien-like microbe in a salty, alkaline lake in California. This extraordinary bacterium could reportedly thrive using the toxic element arsenic in place of phosphorus—otherwise thought essential for life on Earth. It even incorporated arsenic, instead of phosphorus, into the backbone of its DNA, according to the study, which was published online by the prestigious journal Science. If true, the claims were grou