The search for alien life has been boosted after an atmosphere was detected surrounding an Earth-like planet for the first ...

A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the ...

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone ...

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

Astronomers find planet that is shockingly like Earth in huge milestone for search for aliens - First ever discovery of its ...

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

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

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around in saucer-shaped spacecraft. In fact, the life that could be – emphasis ...

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

LOS ANGELES (AP) — In “Disclosure Day,” out Friday, Steven Spielberg is once again inviting audiences to ponder the existence of extraterrestrial life — and the implications it would have for religion ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...