The "Pi in the Sky" math challenge gives students a chance to take part in recent discoveries and upcoming celestial events, all while using math and pi just like NASA scientists and engineers. In this problem from the 10th set, students use pi to compare the area of the Hubble Space Telescope and Webb Telescope’s primary mirror. Materials Pi in the Sky 10: Rad Reflection worksheet – download PDF (for best results, download and print from Adobe Reader) Pi in the Sky 10: Rad Reflection answer ke