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

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

For over a century, scientists have thought of time as a fundamental property of the universe. But the more researchers seek ...

Claims of an 'arms race' involving Russia and China, reverse-engineering, and crashed alien spacecraft re-emerged this month ...