This after hours event at the Cleveland Museum of Natural History features Eclipse Fever, an original program in the Nathan and Fannye Shafran Planetarium, 3D movies, current science presentations, encounters with the museum’s animal ambassadors, guided night walks through the Ralph Perkins II Wildlife Center & Woods Garden. Guests can also celebrate the 50th anniversary of Pink Floyd’s iconic albumThe Dark Side of the Moon with an immersive planetarium experience that will take you on a mind-bending audiovisual journey. The event goes until 8 p.m.