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

Deep inside one of the harshest environments on Earth, survival becomes a minute-by-minute challenge. Poisonous gases, ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

The sports world was heartbroken to learn this week that former Tennessee Titans running back Chris Johnson is battling ALS.

ANSWER: Factitious disorder, sometimes called Munchausen syndrome after the 18th century German nobleman Baron Karl Friedrich ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg ...

LOS ANGELES — 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 on ...

Anthony Salvanto, Ph.D., is CBS News' executive director of elections and surveys. He oversees the CBS News Poll and all surveys across topics and heads the CBS News Decision Desk that estimates ...

In his interview with Entertainment Weekly, Steven Spielberg opened up about the idea of meeting aliens. “I would not be the right person to be the first person to interact with the off-world species, ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo by Taylor Hill/WireImage/Getty Image Steven Spielberg is looking forward to the release of his UFO film, Disclosure Day.