December 20, 2012 When a meteorite crashed down in April on the exact spot where gold was discovered in 1848, professional and amateur meteorite hunters alike fanned out to collect small chunks. Now more than 50 scientists have published an analysis of the rare space rock.
December 18, 2012 If you've ever wanted to eat a replica of the Mars rover Curiosity that made history this summer, here's your chance. A Caltech chef made one out of gingerbread, and it's on display in the lobby of the Athenaeum, a faculty and staff club on the Caltech campus.
December 13, 2012 Commercial space travel is becoming a reality. Now people who have longed to go into space can buy a ticket, if they've got the cash. But are they healthy enough to make the voyage?
December 13, 2012 Given the history of first orbital space shots, North Korea's apparent struggle with its mission is fairly typical, experts say.
December 7, 2012 It's been 40 years since NASA launched Apollo 17, its final human mission to the moon. The commander of that mission says he'd love to give up his claim to fame as "the last man on the moon" but concedes that it probably won't happen in his lifetime. And future trips might be run by companies in the private sector.
December 5, 2012 "The night is nowhere as dark as we might think," says one scientist. How does your location light up the night?
December 2, 2012 There's a possibility the Mars rover has found signs of carbon-containing molecules on the red planet. That discovery is exciting because of what it might say about the Martian environment where the rover is sitting at the bottom of Gale crater.