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

Movies like Arrival and Eternal Sunshine of the Spotless Mind feature the best and most powerful endings in the history of ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

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

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

A published report says a U.S. fighter pilot whose aircraft was downed in Iran earlier this year shared a startling account ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

The main focus of the trip is to study the effects of long-term spaceflight on the body, but the test is also a side mission.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Sony AI's Ace robot defeated professional table tennis players in Tokyo — and the eeriest part is how it learned: never by ...

Avi Loeb has suggested that humans themselves may be 'intelligent, self-replicating and self-repairing autonomous probes' built by an advanced alien civilisation, arguing in a new essay published ...