Two months ago, scientists detected an unusual object entering our Solar System, sparking speculation about whether it is a comet or an alien spacecraft. This video covers the discovery and details ...

Lawmakers and Trump UFO advisors are naming the private corporations who allegedly operate alien craft-retrieval programs — as they try to drag the government contractors into the administration’s ...

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — A newly-discovered interstellar object speeding through the solar system should be investigated over the ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

The astrophysicist has authored a new book about the prospect of nonhuman intelligence in the universe.