page_title: Ken Mattingly
section_title: NASA career
hierarchical_section_title: Ken Mattingly / NASA career
caption_attribution_description: English: The original Apollo 13 prime crew. From left to right are: Commander, James A. Lovell, Command Module pilot, Thomas K. Mattingly and Lunar Module pilot, Fred W. Haise. On the table in front of them are from left to right, a model of a sextant, the Apollo 13 insignia, and a model of an astrolabe. The sextant and astrolabe are two ancient forms of navigation.Command Module pilot Thomas "Ken" Mattingly was exposed to German measles prior to his mission and was replaced by his backup, Command Module pilot, John L."Jack" Swigert Jr.
context_page_description: RADM Thomas Kenneth Mattingly II, USN, Ret. is a former American naval officer and aviator, aeronautical engineer, test pilot, Rear Admiral in the United States Navy and astronaut who flew on the Apollo 16, STS-4 and STS-51-C missions.
  Mattingly had been scheduled to fly on Apollo 13, but three days prior to launch, he was held back and removed from the mission due to exposure to German measles. He later flew as Command Module Pilot for Apollo 16 and made 64 lunar orbits, making him one of 24 people to have flown to the Moon. Mattingly and his commander from Apollo 16, John Young, are the only people to have flown to the Moon and also a Space Shuttle orbital mission.
  During Apollo 16's return flight to Earth, Mattingly performed an extravehicular activity to retrieve film cassettes from the exterior of the spacecraft, the command and service module. It was the second "deep space" EVA in history, at great distance from any planetary body. As of 2020, it remains one of only three such EVAs which have taken place, all during the Apollo program's J-missions.
caption: Mattingly (center) as part of the original prime crew for Apollo 13
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