Centaur G-Prime Upper Stage on display at the United States Space and Rocket Center. Developed from the Centaur upper stage, the G-Prime version was to be used with the American Space Shuttle. The Centaur G-Prime program was cancelled after the Challenger disaster in 1986. (Photos: Richard Kruse, 2008)
Agena-A Upper Stage on display at the Air Force Space and Missile Museum. (Photos: Richard Kruse, 2009)
Agena-B Upper Stage on display at the Air Force Space and Missile Museum. (Photos: Richard Kruse, 2009)
Agena-B Upper Stage on display at the Udvar Hazy Center. Agena-B was used as an upper stage for a variety of programs, including Ranger, Mariner and Corona missions. (Photos: Richard Kruse, 2008)
(Photos: Richard Kruse, 2007)
This rocket is part of an Inertial Upper Stage (IUS). (Photos: Richard Kruse, 2007)
(Photos: Richard Kruse, 2008)
(Photos: Richard Kruse, 2008)
(These images were taken by Richard Kruse in 2007)
Images by Richard Kruse are licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.