Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

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.

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.