Read The DORIAN Files Revealed
Many of the photos seen in this slideshow were part of a massive image and document release by the U.S. National Reconnaissance Office on Oct. 22, 2015. That data release included The DORIAN Files Revealed (PDF), a 232-page compendium of the Manned Orbiting Laboratory program.
For more in-depth reading of all the declassified MOL documents, visit the National Reconnaissance Office MOL page here.