Australia's space agency said there's a completely rational, albeit cosmic, explanation behind the mysterious orbs that ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Got a nasty stomach bug that won't go away? It could be cyclosporiasis, a parasitic infection that causes weeks of debilitating diarrhea, cramps and bloating.

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

These forgotten sci-fi shows are practically flawless, including the game-changing space opera Babylon 5 and the underrated ...

Debates over the presence of microplastics in the human body highlight the challenge of studying something simultaneously ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Steven Spielberg and aliens go back a long time – they're the cinematic equivalent of peanut butter and jelly. And the history of that successful pairing has led to his new sci-fi thriller "Disclosure ...

This is an edition of the Books Briefing, our editors’ weekly guide to the best in books. Sign up for it here. Oliva recommended six books in which the presence of aliens prompts readers to think more ...