A Harvard University professor known for his polarizing theories about extraterrestrial life has been tapped by the White ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

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

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

Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

Dr. Steven Greer said he’s seen this picture before.

Research indicates airport radar systems may unintentionally broadcast Earth's presence to aliens up to 200 lightyears away, ...

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

An astrophysicist who searches for life in the Universe unpacks Steven Spielberg's UFO blockbuster Disclosure Day ...

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

Maj. Gen. William Neil McCasland vanished from a hiking trail in Albuquerque on February 27, which experts say could be a ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...