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 rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

For decades, scientists have believed that planetary systems typically form with rocky planets close to their star and ...

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

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

Comet 3I/ATLAS is a visitor that will never call the solar system home. Identified on a one-way path that carries it in and ...