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 11th set, students use pi to calculate the change in an asteroid's orbit after it was impacted by a spacecraft. Materials Pi in the Sky 11: Daring Deflection worksheet – download PDF (for best results, download and print from Adobe Reader) Pi in the Sky 11: Daring Deflection answ