A NASA astronaut recently sent the internet into a frenzy when he posted an alien-looking photo on social media. The photo ...

A bizarre floating growth on the International Space Station has caused hilarious online comments.

A strange purple object aboard the ISS sparked alien fears online, but NASA revealed it was a potato experiment. It shows how ...

The eerie purple orb freaking out social media is actually Spudnik-1, a homegrown ISS potato pointing to NASA's plans for ...

A photograph taken by a NASA astronaut has sparked fears it shows an extraterrestrial creature, but it’s just a photo of a potato.

A retired 'UFO general' and a NASA-linked scientist have both vanished in the US, fuelling clashes over whether the case ...

A former NASA developer has analyzed 1950 photographic plates showing nine unexplained objects in Earth's orbit, years before ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

Congressman Tim Burchett accuses NASA of concealing classified information about UFOs, challenging the agency's public ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

The images that recently have gone viral actually date back to 2001.