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

A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

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

Active small bodies—including comets, active asteroids, icy minor planets, and transitional objects—occupy a unique position in planetary science. As ...

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

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange “inside out” system rewrite how we think planets form?

Astronomers have witnessed the creation of a solar system for the first time. Data captured by the ALMA telescope in Chile and the James Webb Space Telescope showed planets forming around a star in ...

The discovery provides new insights into the question, 'how large can a planet be?' An illustration of the HR 8799 system with three of its gas ...

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