OTD…April 6 and STS-41C

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 in 1998…The launch of Discovery on final shuttle-Mir docking mission

#OTD in 2012…Crowds cheer as Endeavour traverses though Los Angeles