OTD…June 21 and STS-57

#OTD in 1992…Columbia launched the LAGEOS-2 laser-reflection satellite

The final manned Mercury mission was launched atop an Atlas rocket on this day in 1963 with Gordon Cooper aboard Faith 7 for a 34-hour, 22-orbit flight.

#OTD…Launch of Columbia in 1993 on the second flight of the German Spacelab