Is there a hidden ninth planet far from the sun? New research pours cold water on the theory.
Hey star! You're going the wrong way.
The kind of space rock that wiped T.rex and friends from our planet might be more common than previously thought.
We'll show you tools and techniques to level up your Mac knowledge. Here's how to get started.
On Feb. 18, NASA's latest Mars rover will try for a dramatic touchdown on the red planet.
So many free games, so little time. This time, practice stealth in gorgeously rendered 16th-century China.
Here's everything that will be included in the latest iPhone update that we know so far, and how to download the public beta.
Users in Seattle, San Francisco and Los Angeles report issues with the videoconferencing app.
Hackers apparently are auctioning off the code they stole.
The Facebook-owned company says it'll make recycled content from other apps "less discoverable."