Astronaut William Thornton, who invented space shuttle treadmill, dies at 91

Astronaut William Thornton, who invented space shuttle treadmill, dies at 91
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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 shuttle missions, has died at the age of 91.



January 15, 2021 at 10:57PM
via Space.com read more...