OTD…Oct. 15 and Cassini

#OTD in 1994…Discovery launched to develop new techniques for monitoring Earth’s environment from space…and in 2006…Construction of the space station resumed as Atlantis delivered a power-generating truss

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

#OTD in 1982 the 3rd launch of the space shuttle and in 1996 the 3rd Mir docking missioN