“No evidence for Clovis comet catastrophe, archaeologists say“. Maybe the Clovis people, the earliest known culture to inhabit North America, disappeared after an ancient comet impact. Maybe not. Maybe they just changed their favourite tools. Whatever.
Stick to what you do best, Anthony, or your troops will get restless.
Wott's Up With That? 
This foray into general science is probably just to add to his see-how-the-scientists-got-it-wrong collection.