A Harvard astronomer, known for his provocative theories regarding extraterrestrial visits, has been selected by the White ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...