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 ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Why are aliens always such a cliche? This one is a mockup of the Roswell Alien from the Museum of Science’s new exhibit, “The Science of Aliens,” which opens Sunday. Click through for more images, ...

While there is no reason to panic, please be aware that a visitor born near a star other than our Sun is currently passing through our Solar System. This alien visitor has been wandering through space ...