Ross Coulthart speculates SpaceX employees could be read into secret UFO programs.

Well, as a matter of fact, I have often had close encounters with aliens, only I never bothered to mention it here. For this ...

Astrobiologists think extraterrestrial civilisations grow so much that they hit crisis points, missing the chance to set out ...

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...

Europe is in the middle of a record-breaking heat wave, and the grid is being pushed to its limits as people turn to fans and ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

For decades, the question of whether life exists beyond Earth has been the domain of science fiction writers and late-night ...

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

NASA astronaut Anil Menon spoke with Newsweek's Leonardo Feldman about life in space, recently declassified UFO sightings, ...

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...