Some UFO cases remain difficult to explain, but that is only the beginning of the scientific question. The evidence needed to ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

The question of whether aliens exist is not a new one. In science fiction films and books, people have wondered if we’re the only life in this universe and what that can imply for universes beyond ...

Robert Smith is convinced the aliens have won. "The invasion has happened—it's all over," says the University of Alberta space historian who teaches a course on the history of extraterrestrials. It's ...

Astronomers using the James Webb Space Telescope have discovered that a distant alien planet's atmosphere is surprisingly lopsided. Located 1,300 light-years away, the scorching gas giant WASP-17b ...

reports of alien abductions and recovered memory syndrome or studies that don't reach traditional levels of significance. But neither controversial phenomena nor potentially illuminating but ...