Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

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

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

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.

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

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...

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

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, as well as other gas giants ...

Six planets will shine together in the evening sky on Feb. 28. Here's how to get the best view before they disappear.