OTD…Sept. 29 and STS-26

#OTD in 2007…Discovery launched Harmony as the gateway to future international science laboratories

Neil Armstrong, Buzz Aldrin and Michael Collins launched today in 1969 aboard Apollo 11 for one of the defining moments of the 20th century — man’s first landing on the moon.

#OTD…Launch of Columbia in 1993 on the second flight of the German Spacelab