This article provides study findings from the summative evaluation of "The Universe in Your Hands: Early Tools of Astronomy" permanent exhibition that opened in May 1995 at the Adler Planetarium and Astronomy Museum. The renovated and recontextualized exhibit portrays the museum's collection of early astronomical instruments in the social and scientific setting of the European and Islamic worlds during the Middle Ages (1200 to 1500 A.D.).
Using Gee’s (2004) notion of ‘affinity spaces’ – places where people collaboratively interact in response to a common interest or affinity – this paper examines how a week-long astronomy camp can shape student self-identities. The paper also examines the design of the camp and notes that it successfully blends the ‘student-led research’ approach with the ‘cognitive-apprenticeship model’.