Erich von Däniken, the Swiss author whose bestselling books about the extraterrestrial origins of ancient civilizations ...

Jessica Chastain is returning for a second season of Audible's "The Space Within," an audio thriller set in a world of alien ...

Erich von Däniken, author who spawned alien archaeology theory, dies at 90 - The Swiss author whose bestselling books about ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

Titan, Saturn’s largest moon, hides an alien world beneath its thick orange haze. From vast seas of liquid methane to windswept organic dunes, explore how this distant moon mirrors Earth in strange ...

When you hear that a giant, icy mass hurtling through space has entered our solar system, your mind might leap straight to aliens — and for some scientists, that possibility isn't entirely out of the ...

A mysterious metal shard captured the imagination of the American public, because it was supposedly from a 1947 UFO that crashed on Earth. The sample seemed to have an unprecedented material structure ...

Consciousness could be a fundamental part of reality, like gravity or matter, according to this controversial theory.

In the vast, quiet theatre of deep space, not many things capture the human imagination like a traveler from another world. For months, the arrival of 3I/ATLAS has sparked a firestorm of speculation ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS. In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System ...