Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

From Project Hail Mary to Independence Day, Alien to Arrival, these alien movies are much better than Disclosure Day.

Could God or aliens and miracles actually be real as a groundbreaking new mathematical theory challenges everything we ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer them a somewhat risky buffet. There is liquid water, as well as salts, ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

Alien director Ridley Scott eventually returned to the franchise, but couldn't complete his ambitious plans. Here's what his unmade movie could have been about.

Theological debates suggest alien encounters might challenge religious traditionalists more than dismantle faith.

After a two week expedition off the coast of Brazil, an international team of researchers discovered 31 new marine species, ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...