Slashdot Mirror
Arsenic-Friendly Microbe Now Seems Unlikely
The Associated Press (as carried by the Washington Post) reports that the controversial report of arsenic-based life-forms in a California lake (much hyped by NASA) look suddenly less controversial, but in a way that will disappoint those who hoped that such an unexpected thing had actually been found on earth. Instead, the journal Science "released two papers that rip apart the original research. They 'clearly show' that the bacteria can't use arsenic as the researchers claimed, said an accompanying statement from the journal." USA Today's version of the story points out that the claim, and subsequent considered rejection of that claim as unsupportable, "looks like a case study in how science corrects its mistakes."
It's nice to see that the matter was cleared up relatively quickly(the media circus wasn't pretty; but it could have been worse).
On the minus side, arsenic-crazed bacteria are a rather cool theory to have dashed against the rocks of callous empiricism. Hopefully some sort of selective breeding experiment can succeed where nature has failed, and give us an organism that substitutes some or all of its phosphorus for arsenic...