About This Lesson
The Spitzer Space Telescope, then known as the Space Infrared Telescope Facility (SIRTF), was the milestone 300th launch of the Boeing Delta II expendable launch vehicle. Erik te Groen of the Public Observatory Philippus Lansbergen created a detailed paper model of that particular launch vehicle to commemorate the launch. Now you can download, print, and construct that model to accompany your Spitzer paper model.
