2018-03-292018-03-29Unknownhttp://hdl.handle.net/2152.3/7458Illustration of the Basic Unit, Martin Denver, for space travel. Within the spherical shape is an astronaut sitting in a track sled.TUFBasic Unit for Space TravelillustrationMartin Denverastronauttrack sledTUFTime of Useful FunctionresearchDr. James G. GaumeSpace Medicine