The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a joint German-US space science project. Carrying a 2.5-metre telescope inside a modified Boeing 747SP, the airborne observatory ...

The US-German Sofia (Stratospheric Observatory for Infrared Astronomy) observatory is based around a modified Boeing 747SP aircraft ... The project is managed for Nasa by the Universities Space ...

One such derivative was the 747SP (Special Performance ... two of them as a testing platform, NASA used one for its Stratospheric Observatory for Infrared Astronomy project, and the Las Vegas ...