OTD…April 5 launches of STS-37 and 131

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

OTD in 1994…Endeavour experienced an on-pad abort due to a main engine problem during startup

#OTD in 1997…Cassini was launched on its billion-mile trek to Saturn