Here We Go Again

The remants of Comet Shoemaker-Levy 9, torn apart by Jupiter's gravity, slammed into Jupiter's atmosphere between July 16 and 22 1994. Fifteen years later:

An amateur Australian astronomer looking through his backyard telescope has discovered that a large comet or asteroid has crashed into Jupiter, creating a hole the size of the Earth in the planet's atmosphere.

Accident? Coincidence? Some sinister anti-Jovian plot?