If you like trivia, check out my other site, THE HARRIS CHALLENGE, and play every weekday!

Wednesday, August 16, 2006

What's A Planet?

This afternoon on my show, Phil Plait discussed the "what's a planet?" controversy, whether Pluto will no longer be considered a planet, and whether other big rocks could be upgraded so that we have 12 planets in our solar system. Listen to the conversation here.