to the Moon, "Spider", dramatizes John Houbolt's first attempt to convince NASA to adopt LOR for the Apollo Program in 1961, and traces the development of the LM up to its first crewed test flight, Apollo 9, in 1969. The episode is named after the Apollo 9 Lunar Module. See also Lunar orbit insertion Trans-lunar injection Trans-Earth injection Notes References Citations Bibliography External links Spaceflight concepts Apollo program Space rendezvous