The planets around a nearby star seem to be in the wrong order, hinting that they formed through a different mechanism than ...

Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

The fourth planet in the system is a rocky world, while the second and third ones are gas planets.

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Astronomers have discovered a distant exoplanet with a tail that stretches over 5.5 million miles long. Credit: Jose-Luis Olivares / MIT illustration Astronomers have accidentally found a planet with ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Our Solar System contains eight planets (sorry, Pluto) orbiting around the Sun. But while all planets are important members of the club, if we’re being honest, we know there’s a crown jewel of our ...