Shutterstock Outer space is massive, and throughout the universe, everything is in motion. The Earth orbits around the Sun, ...

Since childhood, we’ve been told gravity is the force that holds everything together — but what if that idea is incomplete, ...

Dusty stars close to the Milky Way’s black hole stay stable for years. New infrared data shows they survive gravity and ...

The Whoniverse is expanding with a major new project called The War Between the Land and the Sea. This week brought the first ...

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...

Astronomers have identified a colossal exomoon candidate roughly seven Neptune masses orbiting the giant world HD 206893 B — ...

This temporal lag is a direct consequence of Albert Einstein’s Theory of General Relativity. The rule is simple: the weaker ...