OTD…Jan. 13 and STS-54

#OTD in 2012…Kennedy Space Center bid final farewell to Endeavour

#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 1992…Discovery launched with the first International Microgravity Laboratory.