OTD…April 19 and STS-100

#OTD in 1985…Challenger launched the first German Spacelab

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

Apollo 16 launched to the Descartes Highlands of the moon on this day in 1972 with John Young, Charlie Duke and Ken Mattingly.