By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

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

Artist impression of the planetary system with four planets,around a small red star,called LHS1903. Caption: Astronomers have long thought solar systems follow a simple pattern similar to our own: ...

At the farthest edges of the solar system, strange objects follow paths that defy easy explanation. This story investigates ...

The planetary system, located 120 light-years away, features four worlds orbiting a red dwarf star and challenges classical formation schemes.

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

Scientists have discovered something that they previously thought wasn’t possible – an ‘inside out’ star system. When you ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.