Every Fri.–Sun. Three different audiovisual planetarium shows suitable for all ages. Did an Asteroid Really Kill the Dinosaurs? (noon) looks at cosmic collisions across the solar system including the 6-mile-wide asteroid that hit the earth 66 million years ago; The Sky Tonight (1 & 3 p.m.) explores the current night sky, with tips on how to find the cardinal directions, constellations, and planets on your own; and T. Rex (2 p.m.) describes the iconic dinosaur’s scientific and cinematic history (includes scenes of dinosaur violence). Noon, 1, 2, & 3 p.m., 1105 North University. $9 at the gift shop. Limited capacity. (734) 764–0480, ummnh.org.