This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

NASA’s ATLAS survey telescope found an interstellar comet, which could be the largest yet, in the direction of the Sagittarius constellation.

Dr. Caitlin Casey, an observational astronomer, has recently joined the physics department at UC Santa Barbara. She co-leads the C.O.S.M.O.S. collaboration — a project distinguished by its deep ...

When it comes to telescopes, there are no bigger names than Hubble and Webb, but why have two space telescopes anyway, how ...

Beyond the fact that this is the third known interstellar object to have entered our solar system, “we don’t know very much,” ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

Astronomers this week confirmed the discovery of an interstellar object racing through our Solar System – only the third ever ...

But an international team of astronomers have detected the unmistakable signature of a gas giant planet orbiting the ...