The KH-10 (BYEMAN codename DORIAN) was the classified designation for the reconnaissance mission and equipment of the experimental Manned Orbiting Laboratory (aka MOL), also inaccurately referred to as Gemini B
After DORIAN was cancelled, Project COLT provided six (6) surplus 72-inch optical mirrors to the Smithsonian Institute/University of Arizona's Multiple-Mirror Telescope. The mirrors were constructed by Corning and used honeycombed borosilicate to reduce the weight.
- Manned Orbiting Laboratory (MOL)
- KH-11 - America's first near real-time electro-optical satellite, supplanting DORIAN's mission