OTD…July 29 and STS-51F

#OTD in 1985…Atlantis launched on her maiden voyage as a new orbiter joined the shuttle fleet

#OTD in 1999…Columbia launched with the first woman commander and the Chandra X-ray Observatory

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