My Sky is a NASA funded project, which developed a traveling exhibition on astronomy. Boston Children’s Museum (BCM) created the exhibition in collaboration with the Smithsonian Astrophysical Observatory (SAO). Formative and remedial evaluations were conducted at BCM while the summative evaluation took place at the first two venues following BCM: Stepping Stones Museum for Children (Stepping Stones) in Norwalk, CT and The Providence Children’s Museum (PCM) in Providence, RI. Formative evaluation of the My Sky exhibit was conducted between April 2013 and June 2014 to ensure that the components