Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

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

Is the rest of the cosmos a pristine environment awaiting the arrival of humanity’s “post-human” descendants? Or is advanced ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

Scientists now believe life may be found on the notoriously inhospitable planet of Venus – but they believe it will have come ...

Humans have been secretly abusing aliens for almost 80 years in this big-hearted thriller starring Josh O’Connor as a worried whistleblower and a never-more-magnetic Emily Blunt as a weather forecaste ...

The designer behind Ultima Online and Star Wars Galaxies wants you to govern, exploit, protect, and transform your own planet ...

Discover six hard sci-fi films where science shapes story and emotion, like Europa Report and The Martian. Brainy, emotional, ...

When UK mockumentary Alternative 3 tried to spook viewers that scientists were vanishing as part of a sinister space plot it succeeded. Today, the resulting conspiracy theory has even seen Trump’s gov ...

Stacker compiled a collection of 70 images that show how the '70s changed the world. See photos of the decade's defining ...