An interstellar comet can glow in X-rays even while remaining hundreds of millions of kilometers away. That is what makes 3I/ATLAS unusually valuable to astronomers. The object, only the third known ...

When a comet from another star system drifts through the solar system, astronomers do not just see an icy traveler. They see a rare chance to test whether familiar space physics still holds up when ...

Space scientists have revealed a new image of the mysterious space rock that passed through our solar system. Researchers said the picture shows the interstellar Comet 3I/ATLAS, suggested to be a ...