OTD…Oct. 7 and STS-112

OTD…Launch of Discovery in 1991 on a Defense Department research flight

#OTD…The first launch of Challenger in 1983 and Columbia’s shortened Spacelab mission in 1997

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