At its heart, science is about asking questions - looking at the universe around us and asking, "How? Why?" Science takes our natural curiosity and adds structure and rigor, examining things methodically to answer our questions and ask the next ones. It's not just a field of study, it's a valuable way to think about the world around you. In this first part in a series, well-known science advocate Dr. Phil Plait talks about his background, how he came to be "The Bad Astronomer," why he blogs about misconceptions, and how to keep good skepticism alive.