Exomoons orbiting rogue planets could host liquid water for billions of years, offering potential habitats for life deep in ...

Rogue moons drifting through space may host long-lived oceans for up to 4.3 billion years, expanding where scientists search ...

Rogue planets themselves are not thought to be good places to look for life. One of the most critical ingredients for life on ...

When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash between two planets, and ...

New research shows that some frozen moons may hide boiling oceans beneath their icy shells, shaping strange surface features.

Astronomers say a distant, sunlike star shows signs of a catastrophic planet-on-planet crash that may mirror the ancient impact that formed Earth's moon.

Moons may seem like quiet companions to the planets, but many of them are worlds every bit as fascinating as the planets themselves. Some are covered in oceans, some erupt with lava, and others hide ...