Conan's been taking your questions for the past few weeks - and today, he answers a question from Mary Williams. Ha ha ha! I love the fact that Conan had a Hubble Fellow with a Phd in Astronomy from Stanford answer Mary's Astronomy 101 homework!! Talk about killing a fly with a cannon. THERE IS NO BETTER WAY TO KILL FLIES (at least, no funnier way) Anyway, thanks for your question, Mary! Look for something in the mail real soon! ;) If YOU would like to ask Conan a question, GO RIGHT HERE TO OUR OFFICIAL FACEBOOK PAGE TO SUBMIT YOUR QUESTION. Good luck, everybody!