My money is on a meteor to be honest.
What about you?
The gif shown here is a 100% scientific representation of a meteor event. View at your own risk.
-
Well,[spoiler]our solar system is on a crash course with another solar system. In about 5 billion years I think it was, our solar systems will collide. When the black hole in the middle of each solar system collide it will wipe out EVERYTHING in both solar systems. Ultimately, it will be another big bang sort of thing and our solar system will restart but be much bigger. Our solar system gas collided with many other solar systems but the black hole in the middle of ours has kept ripping apart the other solar systems. This "dooms day" solar system has a black hole bigger than ours. In other words, our solar system will meet its match bringing us all to a really epic explosive death.[/spoiler]