Country

Please choose your default site

Americas

Asia

Europe

We were unique until now, with the only eight-planet solar system known, but a Google AI has now discovered that distant star, Kepler-90, has a family of planets just as large as our own.

What's the weather like in a galaxy far, far away? Find out

Get ready for the Geminids, the best meteor shower of 2017

Technical problems push SpaceX's Dragon launch to Friday

Seasonal Videos

Default saved
Close

Search Location

Close

Sign In

Please sign in to use this feature.