Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be ...

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

Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the sun, causing it to ...

Scientists say a nearby red dwarf star hosts a planetary lineup that looks like a mirror image of our own solar system, with ...

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

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

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

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