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

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

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

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

Steven Spielberg's new film “Disclosure Day” explores extraterrestrial life and its impact on religion. UFOs, now also called ...

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...

Disclosure Day had people talking for its fresh take on alien contact and powerful sci-fi themes. These films follow the same ...

In “Disclosure Day,” in theaters now, Steven Spielberg is once again inviting audiences to ponder the existence of extraterrestrial life — and the implications it would have for religion ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

Alien civilizations may have left traces. We just may not have been looking in the right place.