Bidspirit auction | Astronaut Dr W.E. Thornton signed

Astronaut Dr W.E. Thornton signed First Men on the Moon Apollo 11 commemorative FDC NASA double pm Washington D.C Sep 9 1969 and Moon Landing Jul 20 1969 USA. Missions STS-51-B STS- 8. Thornton was selected as a scientist-astronaut in August 1967 with NASA Astronaut Group 6. He completed the required flight training at Reese Air Force Base, Texas. Thornton was physician crew member on the highly successful Skylab Medical Experiments Altitude Test (SMEAT)-a 56-day simulation of a Skylab mission enabling crewmen to collect medical experiments baseline data and evaluate equipment, operations, and procedures. Thornton was also the mission specialist on SMD III, a simulation of a Spacelab life sciences mission. Thornton was a member of the astronaut support crew for the Skylab 2, 3, and 4 missions, and principal investigator for Skylab experiments on mass measurement, anthropometric measurements, hemodynamics, and human fluid shifts and physical conditioning. He first documented the shift and loss of fluid changes in body posture size and shape, including increase in height and the rapid loss of muscle strength and mass in space flight. As a member of the Astronaut Office Operations Missions Development group, Thornton was responsible for developing crew procedures and techniques for deployable payloads, and for maintenance of crew conditions in flight. He developed advanced techniques for, and made studies in, kinesiology and kinesimetry related to space operations.