View the dark sky through telescopes provided by the Black Hills Astronomical Society and SD Space Grant Consortium. Meet noctural animals from the Black Hills Raptor Center. Speak with Rangers from Wind Cave National Park and Badlands National Park. Enjoy a movie, speaker and activities for all ages. Kick-off the Rapid City Sustainability 2nd Annual Earth Day Expo Friday night at 8pm at the Square! Learn what you can do to protect our local dark skies. Remember to turn off your lights before you come! To help support the event, adopt Luna the mascot at www.dianeknutson.com.