Black holes are fundamental to the structure of galaxies and critical in our understanding of gravity, space, and time. A ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

"L 98-59 c could be the first planet smaller than 2 Earth radii with a definitively detected atmosphere," a team of ...

The space rock was first detected in December and was initially considered to have a chance of striking Earth in 2032.

These icy bodies contain organic molecules — and don’t fall into any known category of celestial object we’ve seen before.