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 ...

In a startling revelation that has ignited global intrigue around comet anomalies and interstellar visitors, Harvard astrophysicist Avi Loeb has issued a dire warning regarding the interstellar comet ...