Start Your Weekend With The Hubble Space Telescope's Planetarium Clips

You may not own your own private planetarium — or if you do, can we come over to your house? But you can still experience a journey through the wonders of space, thanks to four new "fulldome" planetarium clips, released by the Hubble Space Telescope. They're available in 4K and 8K resolution. » 2/28/15 1:44pm Yesterday 1:44pm

The First People On Mars Could Have One Hell Of A Case Of Jet Lag

A day on Mars—or a "sol"—is 24 hours and 40 minutes long, close enough to Earth's that for a long time NASA didn't think much of it. But those 40 minutes a day add up, and sleep scientists now worry that our Earthly circadian rhythms could be one more major headache for the first humans on Mars. » 2/26/15 10:25pm Thursday 10:25pm

The Complete History Of Ceres, The Planet (?) Between Mars And Jupiter

Over the last couple of weeks, the Dawn Spacecraft has been beaming back spectacular pictures of Ceres – a world, discovered more than a century before Pluto, about which we know very little. This is the story of its discovery, and humanity's impending visit to one of the last unexplored planetary bodies in the… » 2/23/15 2:16pm Monday 2:16pm

Black Hole Emits Ferocious Winds With the Energy of a Trillion Suns

A black hole and its galaxy are locked in a cosmic struggle, evolving in tandem and balancing each other's growth. In this artist's recreation, you can see cosmic winds howling out of supermassive black hole PDS 456. These winds are so strong that they prevent the galaxy from forming new stars. » 2/20/15 1:25am 2/20/15 1:25am

How Asteroid Mining Could Pay for Our First Space Colony

Many of us dream of living on other planets, but are two things we'll need before it can actually happen: money and raw materials. Now some companies say they have a solution to this problem. They'll mine asteroids for valuable metal ores, and for basic resources like water that we'll need once we're far from Earth. » 2/17/15 7:34pm 2/17/15 7:34pm