It's one thing to shoot for the moon—it's another to log 141 days in space and spacewalk for 15 hours. Former astronaut Kjell Lindgren spent his life in orbit (researching ways to permanently expand mankind's reach in the universe) and he'll share his space exploration tales and host a Q&A session during this free event. Plus, don't miss a 45-minute astrobiology activity, during which Lindgren helps guests imagine their own organic interstellar creations. Wed 5:30 p.m.
—Image courtesy of Kjell Lindgren