OTD…Oct. 3 and STS-51J

#OTD in 1989…Atlantis launched the Galileo spacecraft to Jupiter and in 1993…Columbia launched on a life sciences Spacelab flight

#OTD in 1995…Columbia launched on a microgravity science Spacelab flight

#OTD…Gamma Ray Observatory launched in 1991 on Atlantis and Discovery’s 2010 ISS flight