Radivoje Lajic thinks aliens don't like him. The Bosnian man says his home has been hit by meteorites no less than five times. He took the rocks to experts at Belgrade University, who confirmed that they are the real thing. But they haven't been able to verify that Lajic did anything to anger the extraterrestrials, or that he's the target of some extra-planetary prank. Still, Lajic seems sure this isn't just a coincidence.

Everyone seems to be double-extra-cautiously optimistic about this finding, so don’t go running out to your telescope tonight looking for greetings from friendly space creatures.

But in work reported today in Nature, astronomers say they used the Hubble Space Telescope’s infrared imager to pick up signs of methane in the atmosphere of a Jupiter-sized planet orbiting a star some 63 million light years from Earth. And methane, an organic molecule, is an indicator of the possible presence of life.