OTD…March 22 and STS-3 and STS-76

#OTD in 1988…Discovery returned Americans to space after the Challenger accident

#OTD in 1997…Atlantis launched on the seventh joint docking mission with Russia’s space station Mir

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