DARK UNIVERSE, the new Hayden Planetarium Space Show premiering November 2, 2013, at the American Museum of Natural History, is produced by an acclaimed team that includes astrophysicist and curator Mordecai-Mark Mac Low. Here, Dr. Mac Low gives an overview of what we know about the mysterious phenomenon of dark energy. DARK UNIVERSE celebrates the pivotal discoveries that have led us to greater knowledge of the structure and history of the universe and our place in it—and to new frontiers for exploration. The Space Show is narrated by astrophysicist Neil deGrasse Tyson. DARK UNIVERSE was created by the American Museum of Natural History, the Frederick Phineas and Sandra Priest Rose Center for Earth and Space, and the Hayden Planetarium. Made possible through the generous sponsorship of ACCENTURE. And proudly supported by CON EDISON. The Museum also gratefully acknowledges major funding from the Charles Hayden Foundation. Presented with special thanks to NASA and the National Science Foundation. DARK UNIVERSE was developed by the American Museum of Natural History, New York (www.amnh.org), in collaboration with the California Academy of Sciences, San Francisco and GOTO INC, Tokyo, Japan.