page_title: Apollo 9
section_title: Appraisal and aftermath
hierarchical_section_title: Apollo 9 / Appraisal and aftermath
caption_attribution_description: Apollo 9 Hasselblad image from film magazine 23/D - Earth orbit of the Moon
context_page_description: Apollo 9 was a March 1969 human spaceflight, the third in NASA's Apollo program. Flown in low Earth orbit, it was the second crewed Apollo mission that the United States launched via a Saturn V rocket, and was the first flight of the full Apollo spacecraft: the command and service module with the Lunar Module. The mission was flown to qualify the LM for lunar orbit operations in preparation for the first Moon landing by demonstrating its descent and ascent propulsion systems, showing that its crew could fly it independently, then rendezvous and dock with the CSM again, as would be required for the first crewed lunar landing. Other objectives of the flight included firing the LM descent engine to propel the spacecraft stack as a backup mode, and use of the portable life support system backpack outside the LM cabin.
  The three-man crew consisted of Commander James McDivitt, Command Module Pilot David Scott, and Lunar Module Pilot Rusty Schweickart. During the ten-day mission, they tested systems and procedures critical to landing on the Moon, including the LM engines, backpack life support systems, navigation systems and docking maneuvers.
context_section_description: As NASA Associate Administrator George Mueller put it, "Apollo 9 was as successful a flight as any of us could ever wish for, as well as being as successful as any of us have ever seen." Gene Kranz called Apollo 9 "sheer exhilaration". Apollo Program Director Samuel C. Phillips stated, "in every way, it has exceeded even our most optimistic expectations." Apollo 11 astronaut Buzz Aldrin stood in Mission Control as Spider and Gumdrop docked after their separate flights, and with the docking, according to Andrew Chaikin, "Apollo 9 had fulfilled all its major objectives. At that moment, Aldrin knew Apollo 10 would also succeed, and that he and Armstrong would attempt to land on the Moon. On March 24, NASA made it official."
  Although he might have been offered command of an Apollo lunar landing mission, McDivitt chose to leave the Astronaut Corps after Apollo 9, becoming manager of the Apollo Spacecraft Program later in 1969. Scott was soon given another spaceflight assignment as backup commander of Apollo 12, and then was made mission commander of Apollo 15, landing on the Moon in 1971. Schweickart volunteered for medical investigation of his spacesickness, but was unable to shake its stigma, and was never again assigned to a prime crew. He took a leave of absence from NASA in 1977 that eventually became permanent. Eugene Cernan, commander of Apollo 17, stated that when it came to understanding spacesickness, Schweickart "paid the price for them all".
  Following the success of Apollo 9, NASA did not conduct the "E mission" (further testing in medium Earth orbit), and even considered skipping the "F mission", the dress rehearsal for the lunar landing, going straight to the landing attempt. As the spacecraft designated for the first landing attempt were still being assembled, this was not done. NASA officials also felt that given the past difficulties with the LM, there was a need for a further test flight before the actual landing attempt, and that orbiting the Moon would give them the opportunity to study mass concentrations there, which had affected Apollo 8's orbit. According to French and Burgess in their study of the Apollo Program, "In any event, ... Apollo 9's success had ensured that the next Apollo mission would go back to the moon."
caption: Image of the Moon taken from Apollo 9
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