Blue Gemini[1] was a United States Air Force (USAF) project first proposed in August 1962 for a series of seven flights of Gemini spacecraft to enable the Air Force to gain crewed spaceflight experience prior to the launch of the Manned Orbital Development System, or MODS.
The plan was to end Blue Gemini missions approximately four months before the debut of the MODS space station.
"[4] In December 1963 McNamara approved the development of a Manned Orbital Laboratory (MOL) which was essentially a revived MODS.
A test article on display at the National Museum of the United States Air Force at Wright-Patterson AFB, Ohio is the Gemini B spacecraft, recognized by its distinctive "US Air Force" written on the side, and the circular hatch cut through the heat shield.
This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.