The Cluster is a form of life organized on principles so different from anything on Earth that understanding it requires ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

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

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue that ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

Beneath the icy silence of Antarctica's famous Dry Valleys lies a world so unusual that it often resembles another planet.

According to intelligence reports, each alien species has a humanoid appearance with two arms and legs, Davis claimed. Nordics and Reptilians are human-sized at roughly six feet tall, Davis said at an ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

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