Most of the comets and asteroids astronomers track were born in the solar system and are bound to loop around the Sun ...

Earth is far from the only celestial body in the Solar System.

A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

CAPE CANAVERAL, Fla. — Astronomers have discovered a rare solar system in the Milky Way that boasts six planets orbiting in perfect rhythm like a cosmic orchestra, untouched by outside forces since ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form.