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

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

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

NASA has since confirmed the object is an interstellar comet called 3I/ATLAS – and it is only the third interstellar object ...

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in Rio Hurtado first spotted the object ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

A mysterious object the size of Manhattan, originating from outside our Solar System, has been spotted by astronomers.

Late in the evening on July 1, a telescope in Chile that is part of the global, NASA-funded Asteroid Terrestrial-Impact Last ...