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

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

Talk about a hot mess. Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot enough to melt rock into a churning ocean of magma and ...

Wright-Patterson has played a central role in the US military’s real investigations into mysterious objects in the sky — from ...

Project Hail Mary, the fantastic new sci-fi movie starring Oscar-nominee Ryan Gosling (Barbie, Drive), is available to watch in cinemas now.

Blue Origin and NASA's Jet Propulsion Laboratory are teaming up to design an asteroid-defense spacecraft that will deploy a variety of deflection technologies.

A strange pyramid-shaped formation on Mars has fueled speculation that an advanced, Earth-like civilization may have once ...

Nvidia chief Jensen Huang on Monday said the leading artificial intelligence chip maker is heading for space with a goal of ...