Researchers say elongated alien-like skulls found in ancient graves were shaped in infancy and carried different meanings across cultures.

Theoretically, it’s impossible for us to perceive a 4D creature. That is, unless it broke into our three-dimensional reality.

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

During the season six premiere episode of "The Proof Is Out There" a high-tech U.S. military camera catches alien technology flying over the Persian Gulf, leading to further investigation and ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

The Proof Is Out There” is back this Friday, March 6. Watch the season 6 premiere at 10 p.m. ET on the History Channel.

DENVER—Last month, President Donald Trump took to social media with an announcement that he would direct the Pentagon and other federal agencies to “begin the process” of disclosing government files ...

Notorious alien crank and Harvard physics professor Avi Loeb has noticed a troubling cognitive trend among the AI users in his life.

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...