Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.

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 ...

Science over sensationalism: Tyson says the latest UFO file release offers no new proof of alien visits but is a chance to apply evidence-based thinking. Preparedness mindset: In his new book, Tyson ...