A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

Public fascination with alien visitors has surged again after a cryptic response from the Central Intelligence Agency about the interstellar object 3I/ATLAS. While NASA scientists have publicly ...

The White House turned a legal term into a science-fiction spectacle. The real story is not the theatrics. It is how language ...