OTD…July 23 and STS-93

#OTD in 1982…Columbia launches on the fourth space shuttle mission. #OTD in 1995…Atlantis launches on first shuttle-Mir docking flight

As a dress rehearsal mission for the moon landing, Apollo 10 launched today in 1969 with Cernan, Young and Stafford

#OTD in 2008, the launch of Endeavour on STS-123.