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 ...

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

From outdated tech to funding hurdles, here’s why astronauts haven’t landed on the moon in over five decades ...

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

Scientists are closer than ever to answering one of humanity’s biggest questions: are we alone? From Mars to the icy moons ...

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

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 ...

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

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

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.

Commander Reid Wiseman said the crew witnessed sights no human has ever seen before.