ESA's Gaia mission has determined he orbits of 154,741 asteroids in our solar system. [Gaia spacecraft: Mapping the Milky Way ...

NASA’s Nancy Grace Roman Space Telescope is expected to dramatically expand the search for planets beyond our solar system.

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of ...

NASA's Nancy Grace Roman Space Telescope is poised to make a major leap in the hunt for worlds outside our solar system, ...

Unusual stellar remnants suggest the Milky Way might have eaten a galaxy called Loki billions of years ago, according to new ...