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

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

That brings the complete list to eight people, all connected in varying degrees to nuclear research, advanced propulsion, satellite systems, NASA, or UFO and ...

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

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

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 ...

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

Did NASA discover city lights on an alien planet? This video explores the implications and details of the findings that ...

Astronomers have discovered an additional 100 new worlds in data collected by NASA's exoplanet-hunting spacecraft TESS, ...

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

The internet did a double-take after NASA Astronaut Don Pettit shared a photo from the International Space Station that looked, at first glance, like something from a sci-fi movie. The purple, ...