The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

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 ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the ...

Neil deGrasse Tyson challenges recent UAP disclosures, urging officials to provide concrete evidence of extraterrestrial life ...

Disclosure Day treats extraterrestrial life as a challenge to faith. It’s not.

Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of extraterrestrials should be revealed.

Add Yahoo as a preferred source to see more of our stories on Google. This image released by Universal Pictures shows a scene from "Disclosure Day." | Universal Pictures and Amblin Entertainment via ...

Most Americans believe that aliens exist — and more than one in five think they’ve already paid our planet a visit, according to an out-of-this world new poll. Some 63% of Americans said they’re ...

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 ...