Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They ...

The question of whether humanity is alone in the universe has fascinated scientists for generations, but few have pursued an ...

Avi Loeb, Harvard astrophysicist known for bold alien theories, will lead a Trump administration-backed team investigating UFOs and their security risks.

Interstellar comet 3I/ATLAS, the third known object to enter our solar system from another star, underwent a dramatic ...

Supergirl makes serious changes to Woman of Tomorrow for the live-action adaptation, cutting some of the comic's best-looking ...

NASA's Swift Observatory is in peril. A last minute mission to save it could make spaceflight history. Here's everything to ...

With Russia increasing disruption to European infrastructure in orbit, including jamming, and monitoring of essential ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be ...

12 years is a long wait to play the sequel to one of your favourite games of all time. During that decade-plus stretch, I’ve re-played the original Alien: Isolation multiple times, analysed its ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

Last summer, a NASA-funded asteroid impact warning system detected a mysterious object speeding through the solar system. Scientists determined the object had entered the solar system from deep space, ...