An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Galaxies have an overall internal motion called disk velocity. It’s how gas, dust, and stars move around the galactic center.

The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...

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

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

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

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

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...

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

The American Astronomical Society (AAS), the SETI Institute, and the NASA Community College Network (NCCN) have teamed up to provide an exciting and impactful program that brings top astronomy ...

“On July 1, the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, ...