Most details about the space plane are classified, but the launch vehicle also carried 10 miniscule "cubesats," including the LightSail solar sail, developed by the Planetary Society --
U.S. Air Force Launches X-37B Space Plane on 4th Mystery Mission
Scientific American - 26 May 2015 02:10
Most details about the space plane are classified, but the launch vehicle also carried 10 miniscule "cubesats," including the LightSail solar sail, developed by the Planetary Society --
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