The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

What happens if scientists find evidence of extraterrestrial intelligence? That question was at the center of a recent SETI Live discussion about newly updated post-detection protocols and how ...

A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of ...

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

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

A whistleblower claim has reignited one of the wildest corners of UFO lore: the idea that the CIA secretly mined consumer DNA databases to hunt for alien-human hybrids living among us. According to ...

Welcome to The FWD: the conversation of here and now. Pass it on. As July became August and the rain continued to fall, unusual letters started landing on British MPs’ desks. “Dear,” they began – as ...