The first extended use of the Service Propulsion System engine on the Command and Service module was for the Lunar Orbit Insertion (LOI) burn. Antares UndockedAntares moving away from Kitty HawkAntares Upside-down

With the Hycon camera down, Roosa would have to step in and use a Hasselblad with a 500 mm lens, to take detailed photos of the Apollo 16 potential landing site.  If Roosa did nothing else, he had to return to earth with pictures of Descartes that wo...