NASA's flying infrared telescope at Hannover Airport

NASA's flying infrared telescope did some touch and go's at Hannover Airport today. SOFIA (Stratospheric Observatory for Infrared Astronomy) is a joint German-US space science project and is in service since 2010. The modified Boeing 747 SP (Reg.: N747NA) is carrying a 2.5 metre telescope and performs astronomical observations high above the disturbance of earth's atmosphere.