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

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific ...

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

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...