OTD…June 21 and STS-57

#OTD in 2002…Atlantis launched the outward expansion of the space station’s truss backbone

#OTD in 1982 the 3rd launch of the space shuttle and in 1996 the 3rd Mir docking missioN

#OTD in 1997…Discovery launched to deploy and later retrieve the CRISTA-SPAS atmospheric research satellite