This week, astronomers spotted the third known interstellar visitor to our Solar System. First detected by the Asteroid ...

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...

Astronomers have been trying to detect atmospheres on planets orbiting TRAPPIST-1, but bursts of radiation from the star make this challenging ...

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

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

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

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...