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

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

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

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

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

NASA’s New Horizons spacecraft has successfully demonstrated a revolutionary method for deep space navigation, as the probe ...

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

Dubbed 3I/ATLAS, the comet poses no danger to Earth and will remain roughly 150 million miles away as it speeds by.

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

CAPE CANAVERAL, Fla. (AP) — Astronomers say they've spotted an object in our solar system that's believed to be from another ...

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

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the ...