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 ...

NASA's historic Artemis II mission is hurtling towards a high-stakes splashdown off the California coast tonight, bringing a ...

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

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

From outdated tech to funding hurdles, here’s why astronauts haven’t landed on the moon in over five decades ...

The Artemis II crew will be the first humans to see parts of the moon's far side never before witnessed by human eyes.

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

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

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.

When we imagine alien life in books or on TV, we often think of planets like ours inhabited by extraterrestrial people. The Harry Vanderspeigle’s (Alan Tudyk) of the universe are basically human with ...