Black hole is 12 billion times bigger than the sun

Researchers in China have spotted a supermassive black hole, 12 billion times the size of the sun and around 900 million years old.

The planet you've probably never heard of

Way out beyond Mars, but before you get to Jupiter, is a planet. You read that right. There's a planet between Mars and Jupiter.

'Why I want to die on Mars'

Mars One has selected 100 potential candidates for a one-way trip to Mars. But what kind of person would choose to go?

NASA's mesmerizing images of the sun

For five years, a NASA spacecraft has drifted through the heavens, providing astronomers with the most detailed views of the sun to date.

CyberCaliphate targets U.S. military spouses

Military family activist Liz Snell never thought it would happen to her group: Apparent ISIS sympathizers hacked her group's Twitter account and posted threats against a half dozen or so members.

Hubble captures rare cosmic event on Jupiter

The Hubble space telescope peers millions of light years into the universe to study stars. But it recently focused on Jupiter, a few light minutes away.

Ship cruises on bubbles

A boat is copying the tech behind a super-fast Russian torpedo by riding a foam tunnel through the water.

'Floating' pods to ride above city streets

Driverless pods, gliding above city streets using a network of elevated guideways. This is SkyTran -- but is it the future?

The big dangers of 'big data'

Opinion: Don't fall in love with data -- it doesn't explain everything and often sends misleading signals.