OTD…July 26 and STS-114

#OTD in 2007…The launch of Atlantis with a power truss for International Space Station

#OTD in 2007…Discovery launched Harmony as the gateway to future international science laboratories

#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