#OTD in 1991…Discovery launched the Upper Atmosphere Research Satellite
#OTD in 1992…Endeavour launched on the Japanese Spacelab mission
#OTD in 1993…Discovery launched the Advanced Communications Technology Satellite
#OTD in 1991…Discovery launched the Upper Atmosphere Research Satellite
#OTD in 1992…Endeavour launched on the Japanese Spacelab mission
#OTD in 1993…Discovery launched the Advanced Communications Technology Satellite
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