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 video of a woman spotting “two moons” in the night sky from her roof is going viral on social media, leaving the internet ...

'Do all aliens really need sunlight?' ...

The Artemis II mission to the moon will likely stir conspiracy theories about lunar landings. A compelling piece of evidence ...

Here's what to know about Artemis II, the first time NASA sent humans to the moon and why some people (ahem, Kim Kardashian) ...

The photos show an eclipse and a distant Earth disappearing behind the moon, a disorienting and surreal perspective. Here's ...

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.

Dear people of Earth: Can’t help but notice you’ve launched one of those tin-can-looking thingies into your orbit again. What ...

A Space: 1999-ish shuttle lands on an under-construction moonbase, where scientists have just found a secret hatch containing… something alien, in this trailer from Moon, a new game coming soon for ...