Keywords: Space Station - early concept DVIDS714429.jpg en Langley's Otto Trout suggested as early as 1963 that zero-gravity activities could be simulated by immersing astronauts in a large tank of water Years later Marshall Space Flight Center turned Trout's abortive idea into a major component of NASA's astronaut training program Published in James R Hansen Spaceflight Revolution NASA Langley Research Center From Sputnik to Apollo Washington NASA 1995 p 303 NASA Identifier L66-7850 2009-09-24 Glenn Research Center https //www dvidshub net/image/714429 714429 2012-10-10 17 40 WASHINGTON DC US PD-USGov Langley Research Center Images from DoD uploaded by Fæ |