OTD…Oct. 20 and STS-73

#OTD…Launch of Discovery in 1990 with the Hubble Space Telescope, our window on the universe!

#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

Today in 1971…The launch of Apollo 14 to Fra Mauro with Alan Shepard, Stuart Roosa and Edgar Mitchell.