An enhancement of the theory that an asteroid impact killed the dinosaurs has been presented. Phil Plait in his Bad Astronomy Blog on Slate has an article on the combination of events that may have killed the dinosaurs. What Really Killed the Dinosaurs?

The idea is that the asteroid impact shook up the Deccan Traps volcanic event and caused it to blow up in a big way. That then caused the final extinction.

Interesting idea, and I can see how it could happen that way. We will just have to wait and see how it plays out.

Bill Gill
C is not the speed of light in a vacuum.
C is the universal speed limit.