thanks so much to everyone who took the time to comment as a result of my request to do so last week. i really appreciate it. i wanted to make sure that the time i take each week to put together this series was well spent, that people were actually getting something out of the series, and boy did you guys let me know! thanks again!
Phil Plait posted a cool link to a site that allows you to zoom around a huge image of one of the moon's craters. this thing is bigger than the state of Colorado and the object that caused the crater was 1000 more massive than the object that took out the dinosaurs. holy crap.