Astronomers have collected evidence of a violent collision between two planets in a distant star system. The first clues of this cataclysmic event came when a rather boring star began behaving very ...

New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

As if searching through the cosmos like a detective on an intense investigation looking for an ancient piece of evidence, the Hubble Space Telescope has identified an extraordinary happening happening ...

Astronomers think they've glimpsed one of the rarest sights in space: two planets smashing into each other around a distant star. "It's incredible that various telescopes caught this impact in real ...

Astronomers tracking a nearby star system thought they had spotted an exoplanet reflecting light from its star. Then it vanished. Even stranger, another bright object appeared nearby. After studying ...