"Alien: Earth" follows a group of soldiers as a ship carrying a Xenomorph crash-lands on Earth. The FX TV series is set in the same universe as the "Alien" movies. Here's when "Alien: Earth" takes ...

The Manhattan-sized interstellar visitor hurtling through space has captured the imaginations of UFO watchers for months and ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

Is it a comet or an alien spaceship? That’s the question that many have been asking ever since a large object — one that originated somewhere far, far away — was spotted in our solar system earlier ...

A new preprint study posted toarXiv by a team at Applied Physics in New York suggests that LIGO – the Laser Interferometer Gravitational-Wave Observatory – might be able to detect something far more ...