NASA's planet-hunting Kepler space observatory has turned out to be a jack-of-all-trades — a multipurpose spacecraft that has gone beyond its alien world mandate to tackle some key star mysteries.Full story
Computers may have beaten us in chess and "Jeopardy!" — but can they create and tell a good joke? Full story
Ten years ago this month, in what was heralded as the opening to a new era in human biology and medicine, two rival teams of scientists published their first official reports of the sequencing of the human genome. Full story
A tiny vibrating device, measuring as long as a human hair is wide, won recognition from the journal Science as the first quantum machine and the biggest scientific breakthrough of 2010.
