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

Astronomers discovered 3I/ATLAS, a 10–20 km-wide interstellar comet racing into the solar system. It will reach perihelion in ...

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 ...

Astronomers have confirmed that a recently spotted object is an interstellar visitor, and appears to have come from the ...

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

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

Though 3I/ATLAS will never come close to Earth, its passage offers a rare chance to study material beyond our solar system ...

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.