Astrophysicist Paul Sutter talks about the science behind "Three Body Problem," "Interstellar," and "Avengers: Infinity War." ...

Astronomers are racing to protect the dark skies as private companies seek to place large advertisements in Earth orbit ...

Is there enough legal framework to avoid arguments between nations as space exploration and commercial activity rapidly increase?

I looked up at that epic black domed sky and thought the stars and planets were real ... suffered a massive outer-space hangover/letdown, where it suddenly seemed as if we’d shot our wad ...

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

A team of international astronomers has identified what is believed to be the largest known superstructure in the cosmos, a discovery that could reshape our understanding of outer space.

Neutron stars can have a resounding impact around ... After one such explosion blows a star's outer layers into space, the core remains—but it no longer produces nuclear fusion.