The Great Immensity is a play with music created by the New York-based theater company, The Civilians. With support from the National Science Foundation (NSF), this production explores humans' relationship to the environment focusing on critical issues of conservation and climate change. It premiered at the Kansas City Repertory Theatre (KC Rep) from February 17 through March 18, 2012. This summative evaluation employs the Framework for Evaluating Impacts of Informal Science Education Projects (Friedman 2008) to assess the play and its ancillary programs' impact on adult and student audiences