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 ...

Urgent action now is needed to tackle the major and growing global issue of invasive alien species, says a team of 88 experts from 47 countries. The paper follows the (IPBES) thematic assessment ...

Of all the unknowns in science, the greatest may be extraterrestrial life. Despite stunning advances in astronomy and planetary science, alien life forms — whether microbial and slimy, animated and ...

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 ...

A collaborative project dubbed “A Sign in Space” is a winner of the 2024 Gizmodo Science Fair for simulating a message to Earth from intelligent aliens. The project involved beaming an encoded message ...