Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

This video explores obscure answers to the Fermi Paradox, asking why the universe seems silent if alien civilizations should ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White ...

Avi Loeb, a distinguished cosmologist who previously led Harvard’s astronomy department until 2020 and conducted extensive research on black holes, was recently appointed to chair a new scientific ...

Astronomers may have witnessed one of the rarest and most dramatic cosmic events ever seen: a long-sought intermediate-mass ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Do little green men exist? Was 'Men In Black' a documentary? Prediction markets price the odds of the U.S. confirming aliens before 2027 - here’s why traders overwhelmingly expect a government ...

The loudest crash of gravitational waves ever heard provides an intriguing way of studying event horizons, the boundaries at ...