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

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

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

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

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

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

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