Pat gets a no-prize in the shape of an angry god's fist for bringing us news of the latest candidate for the cause of the Permian extinction:

An apparent crater as big as Ohio has been found in Antarctica. Scientists think it was carved by a space rock that caused the greatest mass extinction on Earth, 250 million years ago.

The crater, buried beneath a half-mile of ice and discovered by some serious airborne and satellite sleuthing, is more than twice as big as the one involved in the demise of the dinosaurs.

Even the scientists who discovered it think more evidence needs to be gathered, but so far this seems to be a much stronger candidate than any previous discovery.