So long, Commander Hadfield – and thanks for all the awesome!

Tonight at 7:08 ET, Commander Chris Hadfield – one of the most charismatic Commanders in the history of the International Space Station – will return to Earth. For the last five months, his steady stream of tweets, photographs and videos have been a source of inspiration, education and entertainment for millions… » 5/13/13 1:04pm 5/13/13 1:04pm

15 Great Movies You Didn't Know Were Science Fiction

The greatest science fiction movies sometimes aren't labeled as science fiction at all. As with literary novels like The Road and The Confessions of Max Tivoli, some classic movies explore alternate or futuristic worlds, even as they slip under the radar of mainstream (or alternative) audiences. Call them slipstream,… » 3/24/08 10:00am 3/24/08 10:00am