OTD…Oct. 23 and STS-120

#OTD in 2007…The launch of Atlantis with a power truss for International Space Station

Shuttle Endeavour launched for the 25th and final time on this date in 2011.

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