Kekke writes: Lots of buzz around this. Russian cosmonaut Anton Shkaplerov took routine samples from the outside of the International Space Station during a spacewalk. These samples were analyzed and found to contain bacteria that must have come from somewhere other than Earth or the ISS itself. "Bacteria that had not been there during the launch of the ISS module were found on the swabs," Mr. Shkaplerov told TASS Russian News Agency. "So they have flown from somewhere in space and settled on the outside hull." He made it clear that "it seems, there is no danger," and that scientists are doing more work to find out what they are. The Independent writes, "Finding bacteria that came from somewhere other than Earth would be one of the biggest breakthroughs in the history of science -- but much more must be done before such a claim is made."