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

Something unusual is moving through our solar system —a fast, faint object now confirmed to have originated beyond it.

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

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed. The object -- likely a comet -- was first detected in data collected between by ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

The comet is only the third known object originating outside of out solar system to pay us a visit.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ever spotted, though scientists suspect many more may slip past ...

Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the scientific community.

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.