A student participates in the Autonomy Challenge with her self-driving car during the sixth annual Full-Throttle STEM® at Eldora Day in Rossburg, Ohio, May 8. Students from seven local high schools showcased their STEM-related projects, including their modeling and simulation-based work, and then competed in a remote-controlled (RC) car race at Eldora Speedway. (U.S. Air Force photo/Richard Eldridge)