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The next five years will see a resurgence in lunar exploration, driven both by idealism and an economic incentive.
It's increasingly clear that the Solar System is more life-friendly than we'd previously suspected.
The social network's giving its "elite" users more control over whose tweets they have to pay attention to.
Mars' moons are unusual in the Solar System - for their size, shape and colour from their parent planet. Where did they come from? We've got some clues to work with.
Don't trust everything you read.
A trillion lions fired into space could make Mars into an oasis, plus other things you can do with a giant ball of cats.
Fluctuations in methane gas in the Martian atmosphere, detected by the Curiosity rover, could mean that there's life living below the surface of Gale Crater. The implications could be surprising.
Major milestone passed as part of ongoing plan to land humans on Mars by 2030.
Reflecting heat back into space, seeding the ocean with iron, simulating the effects of volcanic dust - the problem with thinking big about fixing the climate is that the massive risks are far more expensive than the known costs of simply not screwing the planet up in the first place.
Governments are setting their sights on missions to Mars and the moon but private companies are focused on shorter excursions into space. Their motivation is simple: there’s money in it.
Some background while we wait for the ESA's probe to touch down on the comet's surface.