The purpose of this study is to adapt Astronomy Attitude Scale (AAS) developed by Zeilik et al. (1999) into Turkish and investigate the validity and reliability of the Turkish version of the scale. 83 undergraduate students from the Department of Astronomy and Space Sciences at Ankara University, and 172 pre-service teachers from three different universities (Amasya University, Gazi University, Kocaeli University) who have taken introduction to astronomy course participated in this research. After the linguistic equivalence of the scale was examined validity and reliability analyses were performed. The results of the factor analysis showed that the AAS’s factor structure was different from the original version; the scale had two factors consisting of 15 items. Cronbach’s alpha internal consistency coefficient of the whole scale was found as .80. The reliability coefficients of the two factors are .71 and .77 respectively. The results of explanatory and confirmatory factor analysis showed that the Turkish version of AAS is a valid and reliable scale.