Astronaut William Thornton, who invented space shuttle treadmill, dies at 91
Home News Spaceflight NASA astronaut William Thornton, STS-8 mission specialist, takes part in physiological studies on the space shuttle Challenger during his first of two spaceflights in 1983. (Image: © NASA) Former NASA astronaut William “Bill” Thornton, who used his own inventions to measure and combat the ill-effects of microgravity while on board two space…Continue Reading