Photographs of planets can fool you. A close crop of swirling cloud bands or a patch of rusty dust can look like almost ...

CAPE CANAVERAL, Fla. (AP) – A record-tying eighth planet has been found in a faraway solar system, matching our own in number. Even more amazing, machines and not humans made the discovery. NASA ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there is a distant Planet Nine out there.

Outer space is, for lack of better words, infinite. For thousands of years, humans have tried to comprehend the vastness of space, and yet so much remains unexplored and undiscovered. While space ...