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

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

Astronomers have spotted an unusual 'inside-out' planetary system where a rocky world seems to have formed far beyond the realm typically reserved for gas giants.

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

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

Astronomers have discovered a surprising planetary system that does not follow the usual rules of how planets form. The ...

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

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