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

Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

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

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

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

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

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific expectations -- and suggests these faraway worlds formed in a manner never seen ...

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

A global team of astronomers, led by the University of Warwick, have used a European Space Agency (ESA) telescope to discover ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

Stargazers can see six planets all in one evening during the second month of the year, especially Mercury, which is usually ...