Somewhere in the Mojave Desert, a gleaming white dome sits in the middle of nowhere, and the story behind it is stranger than ...

Today:Early fog in the far southwest clears quickly. Most areas stay dry with sunshine and variable cloud, though northern and northeastern regions may see isolated showers. Light winds overall, ...

In 1994, students at Zimbabwe's Ariel School reported witnessing one of the most extraordinary UFO encounters ever documented. During morning recess, dozens of children claimed a strange craft landed ...

Just over 40 years ago, in his novel Contact, astronomer Carl Sagan imagined what it would be like to detect radio signals beamed from other intelligent lifeforms in the galaxy. In the story, these ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the ...

Erich von Däniken proposed that monumental structures such as the pyramids could have been built with help from aliens. Stefan Baumann Could ancient humans really have built the pyramids without ...

It feels like I’ve been transported into a scene straight out of a science fiction movie. I’m walking around on a giant centrifuge in space, which I can see the outlines of at the edge of my vision.

New data from NASA’s InSight mission has revealed mysterious, dense structures hidden beneath the sediment layers of Mars’ lost northern ocean. What are these strange formations, and what do they tell ...

In 1950, during a lunchtime conversation with colleagues at the Los Alamos National Laboratory, famed physicist Enrico Fermi asked the question that launched a hundred (or more) proposed resolutions. ...