The Carnegie Science Center is bringing its portable planetarium! Elmo and his friend, Hu Hu Zhu, a Muppet from the Chinese co-production of Sesame Street, go on an exciting trip to discover the sun, moon, and stars. To close the show, Big Bird, Elmo, and Hu Hu Zhu pick a friendship star to celebrate the idea that they share the same sky. For grades K-2. Register beginning May 13th .