To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

LOS ANGELES (AP) - In "Disclosure Day," out Friday, Steven Spielberg is once again inviting audiences to ponder the existence of extraterrestrial life - and the implications it would have for religion on Earth.

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate also known as water bears—are the only animals ...

Noah Hawley and the Xenomorph from 'Alien: Earth' Matt Sayles for Deadline/FX EXCLUSIVE: Noah Hawley is hoping that Alien: Earth has found its forever home at the UK’s Pinewood Studios. As the the FX sci-fi show nears start of production on its second ...