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

The Oort Cloud is often described as the outermost boundary of the solar system, but its true role remains uncertain. This ...

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

The Solar System is far larger than the neat diagrams found in textbooks. Beyond the planets lies a vast region of icy debris ...

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

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 ...

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

NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

"If our solar system is indeed moving this fast, we need to question fundamental assumptions about the large-scale structure of the universe." When you purchase through links on our site, we may earn ...