Some of the smartest people on the planet — Nobel Prize winners, theoretical physicists, Silicon Valley billionaires — ...

I have seen the lofty walls of Babylon and the Zeus statue by the Alpheios River. The Hanging Gardens and the colossus of the ...

The Pentagon on Friday released a first group of previously secret files documenting reports of UFOs - a move sought for ...

A top U.S. Air Force general linked to the military's alleged research on UFOs has gone missing – and experts are calling his mysterious disappearance a "grave national security crisis," ...

Melissa Quinn is a senior reporter for CBSNews.com, where she covers U.S. politics, with a focus on the Supreme Court and federal courts. Washington — A federal appeals court on Tuesday ordered an end ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Americans’ opinion of space exploration is pretty high. In an Ipsos poll conducted last week just after the launch of Artemis II, US adults say, 62% to 34%, that the benefits of NASA sending people ...

Below is my ham radio. I have a permit for it, and you're allowed to use it. Adjust the bands and the dials to see if you can make contact with an alien! There are eight alien signals hidden within ...

From the first photographer star to the discovery of alien worlds, these night sky targets mark some of astronomy's greatest ...

Just over 40 years ago, in his novel Contact, astronomer Carl Sagan imagined what it would be like to detect radio signals beamed from other intelligent lifeforms in the galaxy. In the story, these ...

Earth is dotted with humongous, human-made structures that, to an alien eye, may be tell-tale signs of intelligent goings-on.