Arizona Science and Astronomy Expo: Tucson, Nov. 16 and 17

If you're within a couple of hundred light years of Tucson, Arizona this Nov. 16 and 17, you should seriously consider attending the Science and Astronomy Expo being held at the convention center there. There will be talks by world-renowned speakers, panel discussions, over a hundred vendors, and a whole passel of special events. I'll be there, on a panel talking about science education with my friends Carin Bondar, Emily Lakdawalla, Amy Shira Teitel, Michael Belfiore, and NASA's own Lauren Worl...