The death of one is a tragedy, and death of a million, a statistic. This piece is a collision between a planet, and it's moon! The moon gradually lost momentum, and fell to the planet, shattering it beyond saving, extinguishing billions with a single hammer stroke.
Please enjoy - I am happy to let you use this piece, but no derivative works, and please make sure you give me credit! And if your using it for a commercial work a check would be great too ;)