In the 11th installment of the Pi in the Sky illustrated problem set, students use pi to calculate the change in an asteroid's orbit, determine how much data an Earth orbiting satellite will collect, map the surface of the Moon, and measure Earth's movement in orbit around the Sun. Materials Pi in the Sky 11 poster – Download PDF (for best results, download and print from Adobe Reader) Pi in the Sky 11 handouts – Download PDF (for best results, download and print from Adobe Reader) Pi in the Sk