Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

You might think that legendary sci-fi author Arthur C. Clarke would've adored the Star Trek franchise, but that wasn't ...

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

You are driving alone through a quiet countryside road at dusk when something strange appears in the sky. A sudden white ...

An image taken by Curiosity last month has sparked claims of a long-lost civilization on the Red Planet after some spotted a ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Findings from a mysterious remote chain of islands off the coast of California are rattling bones in the science community as ...