Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

Among the most persistent claims is that extraterrestrials assisted in the construction of ancient civilizations.

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

Could Steven Spielberg's new movie, Disclosure Day, be linked to Close Encounters of the Third Kind? The trailer might have ...

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

The ambitious Netflix adaptation of Liu Cixin's 3 Body Problem proves that smart, high-concept sci-fi can still captivate ...

A recent paper published in December to the journal Religions posed a simple yet profound question with its headline: ...

The threats of AI underline the urgency of a revolutionary, ecosocialist break with the civilisation of capitalist growth.

Science fiction often shows aliens with human features like eyes, limbs, and faces. But science has a reason for questioning this idea. Through convergent evolution, similar environments and physical ...

President Trump had lashed out at former President Barack Obama earlier Thursday for telling a podcaster that aliens were ...

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of fascination — and spawned more than a few wild ...

Trump vows to release Pentagon UFO files; Obama discusses alien life: Movies, online forums to conspiracy theories, why are we fascinated with aliens? The psychology explained ...