How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A .

The question of whether aliens exist is not a new one. In science fiction films and books, people have wondered if we’re the only life in this universe and what that can imply for universes beyond ...

The opening scenes of Noah Hawley's "Alien: Earth" reveal that humankind will attempt to achieve immortality through these methods: cybernetically enhanced humans, artificial intelligence, and ...