A video of a woman spotting “two moons” in the night sky from her roof is going viral on social media, leaving the internet theorising about a possible “UFO or alien sighting”. Take a ...

NASA’S top chief has weighed in on one of humanity’s biggest mysteries – are we alone in the universe? The US space agency’s ...

A lunar far side experiment finds no alien signals but proves the Moon could offer the quietest listening post yet for future ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long believed Saturn’s moon Titan hid a massive underground ocean, but new research suggests something even ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept depicts a potential volcanic exomoon between the exoplanet WASP-49Ab, left, and its parent star.

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.