S69-39996 (25 July 1969) --- The first Apollo 11 sample return container, with lunar surface material inside, is unloaded at the Lunar Receiving Laboratory, Building 37, Manned Spacecraft Center (MSC). The rock box had arrived only minutes earlier at Ellington Air Force Base by air from the Pacific recovery area. The lunar samples were collected by astronauts Neil A. Armstrong and Edwin E. Aldrin Jr. during their lunar surface extravehicular activity.