Every Fri.–Sun. Three different audiovisual planetarium shows suitable for all ages. We Are Stars (noon) explores the secrets of our cosmic chemistry and our explosive origins, connecting life on Earth to the evolution of the universe. The Sky Tonight (1 & 3 p.m.) is an exploration of the current night sky, with tips on how to find the cardinal directions, constellations, and planets on your own. Dynamic Earth (2 p.m.) traces a trail of energy from the Sun through the Earth’s atmosphere and into the biosphere. Noon, 1, 2, & 3 p.m., U-M MNH, 1105 North University. $8 in the gift shop. Limited capacity. lsa.umich.edu/ummnh, (734) 764–0478.