Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Harvard astrophysicist Avi Loeb's speculative claim that 3I/ATLAS could be an alien AI probe ignites scientific debate, NASA ...

Since its debut, "Star Trek" has introduced decades worth of new characters, locations, and alien races, but only a few disappeared from one day to the next.

Speculation about the existence of extraterrestrial life may sound like science fiction, but economists and financial experts ...

Aliens may have lived in our solar system, according to new research. NASA scientists have unveiled evidence that the dwarf ...

Most sci-fi weapons become iconic through repetition or spectacle. They look futuristic, they fire impressively, and they ...

U.S. President Donald Trump said Saturday that he would charge a 10% import tax starting in February on goods from eight ...