Happenings this Week If you were a kid before 2006, you probably memorized the solar system with “My Very Educated Mother Just Served Us Nine Pizzas.” And then—suddenly—no more pizza. Just Nachos. Or Noodles? (Not nearly as satisfying.)Here is a short poll to gauge your emotional temperature before attending Laura Hammerbeck’s talk at ELO on Saturday: How did you cope with Pluto’s demotion? ☐ Denial ☐ Anger ☐ Bargaining with the IAU ☐ Acceptance (but only technically) ...