Small asteroid or comet 'visits' from beyond the solar system. A small, recently discovered asteroid -- or perhaps a comet -- appears to have originated from outside the solar system, coming from somewhere else in our galaxy. If so, it would be the first "Interstellar object" to be observed and confirmed by astronomers. Source 9p.
That comet / asteroid would have to be traveling really fast to avoid the gravity pull of other planets or suns. I wonder where it came from. Its also a wake up call that something can be coming from outside our solar system to 'hit' us. While the chances are slim its still there!