A cubic metre of ordinary lunar soil might be one of the best physical records available anywhere for testing whether another technological civilization ever existed in the Milky Way. That is the ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

Baba Vanga is back at the centre of a viral prophecy storm, with social media posts once again claiming the late Bulgarian mystic predicted World War III and an alien spacecraft arriving on Earth in ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.