1. Duane Edgar "Doc" Graveline was an American physician and NASA astronaut.

1. Duane Edgar "Doc" Graveline was an American physician and NASA astronaut.
Duane Graveline was one of the six scientists selected in 1965, in NASA's fourth group of astronauts, for the Apollo program.
Duane Graveline was best known for being immersed in water for seven days as part of his zero gravity deconditioning research while working as a United States Air Force research scientist.
Duane Graveline's hobbies included medical consulting in microgravity deconditioning and galactic cosmic radiation and personal health maintenance.
Duane Graveline died at the age of 85 on September 5,2016.
Duane Graveline's ashes were interred at Arlington National Cemetery on May 3,2017, with full military honors.
Duane Graveline received his Bachelor of Science degree from the University of Vermont in 1951 and his Doctor of Medicine degree from the University of Vermont College of Medicine in 1955.
Duane Graveline entered the United States Air Force Medical Service after graduation from medical college.
Duane Graveline was granted the aeronautical rating of flight surgeon in February 1957.
Duane Graveline then attended the Aerospace Medical residency at the Air Force School of Aerospace Medicine, completing his residency training in July 1960 at Brooks Air Force Base and receiving his specialty certification by the American Board in Preventative Medicine.
Duane Graveline authored ten professional publications and reports on biological deconditioning and weightlessness countermeasures.
Duane Graveline's research involved bed rest and water immersion to study deconditioning.
In June 1965, Duane Graveline was selected with NASA's first group of scientist astronauts and assigned to Williams Air Force Base for jet pilot training.
Duane Graveline resigned on August 18,1965, prior to flying in space.
Duane Graveline was the first astronaut to resign prior to being assigned a mission.
For nearly 20 years, Duane Graveline practiced medicine as a family doctor in Burlington, Vermont, during which time he served as a flight surgeon for the Vermont Army National Guard.
Duane Graveline continued practicing medicine during his appeal, culminating in the restoration of his license following remedial action in 1989.
Duane Graveline waived his right to further proceedings and ceased practicing medicine, later noting in an online biography that he "retired from medical practice at the age of 63".
Thereafter, Duane Graveline became a writer of medical and science fiction thrillers, ultimately authoring 15 fiction books during his retirement.
Duane Graveline was a contributor to the 2006 book NASA's Scientist-Astronauts by David Shayler and Colin Burgess.