OTD…Aug. 8 and STS-28 and STS-118

#OTD in 1997…Columbia launched on the reflight of her shortened Microgravity Science Laboratory mission

#OTD in 1994…Endeavour launched on the second Space Radar Laboratory mission

Studying the atmosphere as part of NASA’s Mission to Planet Earth was the objective of shuttle Atlantis’ STS-45 mission in March 1992.