What's the illustrious Chris Hadfield – former commander of the International Space Station – been up to since departing low-Earth orbit? Re-adapting to gravity, for one (Hadfield: "my body was quite happy in space without gravity") and participating in this fantastic press conference, his first since he returned to…

Our planet is lucky enough to have a large moon orbiting not too far away, which makes for very pretty moonlit nights. But for spectacular skies it might almost be worth trading in our moon for a ring like Saturn's.

Most people know perfectly well that rocks minerals can look incredible on the inside – but this cross-sectional view of a meteorite still caught us by surprise.

If aliens are listening in on Earth, a speed-of-light delay dictates that many of pop culture's jokes and catch phrases are only just now being heard.

These are the remnants of the last supernova known to explode in our galaxy whose light has reached Earth. It lit up the night sky in 1604 and attracted the attention of Johannes Kepler himself. But it's only in the last couple of decades that we've developed the technology to understand exactly what kind of supernova …

Yesterday's 263-foot drive by the NASA's Opportunity put Mars Rover's total distance driven at 35.76 km, breaking the 40-year-old record for the greatest distance driven by a NASA vehicle on another celestial body. But Opportunity still hasn't quite beaten the record set by the USSR's Lunokhod 2.

The "Big Dumb Object," as christened by Roz Kaveney, has been a staple of science fiction for decades. But what's your favorite massive freakin space object? Share your most beloved Dyson Sphere, ringworld or mega-space station below!

We were all impressed with the dramatic trailer for Gravity, with George Clooney weathering an explosion on an orbiting space station and Sandra Bullock spinning off into the void of space. Things like that make good cinema. There are other space crises, though, that will never get their own movies. Here are some…

Here it is at last — the first full-length trailer for Europa Report, the tense thriller about a mission to Jupiter's moon that goes horribly wrong. It's filled with stunning visuals and neat character moments. Plus laudatory quotes, including a couple from io9.

NASA’s Kepler space telescope is busted and it may never work normally again. But during its four years of exemplary service, the planet-hunting telescope provided astronomers with an unprecedented glimpse into the Milky Way. Here are the most incredible discoveries made by Kepler.