Meet the Keynote Speakers: Bill Bottke
Just the mention of asteroid bombardment is frightening to most, but for Dr. Bottke it is all fun and games.
2012: My Favorite Doomsday Scenarios
Let’s be serious for a moment: nothing dire is going to happen on December 21st. Rest easy. But in celebration I’ve decided to count down my top five favorite astronomical doomsday scenarios, ordered from most to least plausible.