OTD…Oct. 30 and STS-61A

#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 1998…The launch of Discovery on final shuttle-Mir docking mission

#OTD in 2009…Endeavour launched to complete the Japanese segment of the International Space Station