The purpose of this study is to examine the effects of science fiction stories developed by comic technique on creative thinking skills of 11th grade students. The one-group pretest-posttest design is used in the study. Science-fiction stories developed by comics technique was used as training materials. A black and white comic book series created by Jean-Pierre Petit and Gilles d'Agostini, which has parallels with modem physics unit of physics curriculum, was selected. The research was conducted in the first semester of the school year of 2012/2013 and carried out with 30 students who studied in Anatolian High School for 5 weeks during class hours. The Divergent Thinking Scale (DTS) developed by Williams (1980) was used to measure the students' creative thinking skills. Wilcoxon Signed Ranks Tests, the associated samples t-test, and descriptive analysis techniques were used to analyze the data. The results of the study revealed that there was a significant difference between Creativity Assessment Packet pre-test and post-test scores. Also, there was a significant difference between flexibility and originality pre-test and post-test scores, which are creative thinking sub-dimensions, of students who participated in the research. It was concluded from the study that science fiction studies developed using comic technique could be as a material to improve students' creative thinking abilities.