Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of ...

Read an excerpt of this deep-space mystery from the prolific writer of 'Whalefall' and 'Angel Down.' ...

The Predator franchise boasts some terrifyingly skilled and downright memorable characters. Let's try to find the 10 ...

A toxic chemical long considered hostile to life on Mars, may not be an obstacle to building on the Red Planet after all. Instead, it could.

Pluto and Charon don’t behave like a typical planet and moon system. Instead of Charon orbiting inside Pluto’s body, both objects orbit a point in space between them called the barycenter. That’s why ...