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

Astronomers this week confirmed the discovery of an interstellar object racing through our Solar System – only the third ever ...

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency ...

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 ...

The comet should remain viewable through telescopes until September as it approaches the Sun, then emerge again in December on its outbound leg.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

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 ...

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