Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

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

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

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

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

A comet from a solar system outside our own was first noticed on July 1 by a NASA telescope located in Rio Hurtado, Chile, as part of the Asteroid Terrestrial-impact Last Alert System (ATLAS).

It is only the third such object to have been identified as having an interstellar origin, which means it did not begin its ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

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