In this clip Kristian and Kevin decide which is the most likely reality, we crash landed and killed the dinosaurs, aliens ...

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

In “Why Do We Exist?” Hakeem Oluseyi explores how life may emerge to move energy through matter—and why Earth is the perfect ...

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

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

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," ...

U.S. District Judge James Boasberg’s effort to investigate possible criminal contempt by Kristi Noem and other senior Trump administration officials in connection with deportation flights last year ...

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 ...

Americans’ opinion of space exploration is pretty high. In an Ipsos poll conducted last week just after the launch of Artemis ...

Aphelion, a new sci-fi game, does something similar: it deftly balances a grand story about trying to find a new hope for ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

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