Podcast #29: Was the Asteroid Belt a Planet? Part 1

In this episode that is one second shy of 30 minutes, I talk about some of the historical reasons why some people may think the asteroid belt was at one time a planet, but then I go into four ways to show that it could not have been a planet. Next episode (“Part 2”) will get more on the wacko-conspiracy/crazy/pseudoscience exploding planet ideas.