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

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

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

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 ...

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

In the predawn hours of July 1, 2025, a faint streak of light caught the attention of astronomers peering through data from a ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

Astronomers have confirmed the discovery of an "interstellar object" named 3I/Atlas passing through the inner solar system.

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

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

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on ...