Dr. Duane Graveline was the first scientist to conduct a space flight simulation study to analyze the effects of weightlessness on the human body. He entered the USAF Medical Service in 1955 to study aviation medicine, and was granted the rating of “Flight Surgeon” in February 1957.
Graveline went to Brooks AFB Aerospace Medical Laboratory in 1960, where his specialized research involved bed rest and water immersion to study biological changes in extended micro-gravity. In his search for countermeasures, he also headed a Soviet bio-astronautics team for the Foreign Tech Division in 1962.

In June 1965, Dr. Graveline was selected with NASA's fourth group of scientist astronauts for jet pilot training, supporting the Mercury, Gemini and Apollo eras as a flight controller. This man who laid the groundwork for astronaut biodata (from Enos the Chimp to Alan Shepard!) also developed the lower body negative pressure device for zero-G tolerance testing – used in Skylab, Mir, Shuttles and the ISS.
Now 78, Graveline is the author of medical books, science fiction, and a fantastic website. Anyone applying for the current studies should definitely read his essays in the Space Medicine section, particularly:
- Astronaut Post-Flight Syncope
- Body Fluid Changes in Space
- Bone Demineralization
- Musculoskeletal Deconditioning
- Retinal Flashes and the Moon
- Stress Exercise Dangers
- Tilt Table Testing (Yes, you have to do this!)
- Weightlessness
















































































