OTD…April 12 and STS-1 and 51D

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

#OTD in 1995…Discovery launched a Tracking and Data Relay satellite

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