The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...

A mysterious metal-rich asteroid called Psyche has been baffling scientists for over two centuries, and its true origin ...

In our solar system, Jupiter is the undisputed king. If you added more mass to Jupiter, it wouldn’t actually get much bigger ...

A bizarre, ultra-light planet is cloaked in such a thick haze that even JWST can’t reveal its composition. Its unusual size ...

Scientists observe a dramatic collision between two planets, offering insights into the formation of Earth's Moon 4.5 billion ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet ...

For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an ...

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

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.

Something is hiding inside Kepler-51d, and it’s doing a remarkably good job of it. About 2,615 light-years away in the ...