OTD…April 6 and STS-41C

#OTD in 2012…Endeavour’s coast-to-coast ferryflight into retirement arrives at Edwards Air Force Base

#OTD in 2008, the launch of Endeavour on STS-123.

Neil Armstrong, Buzz Aldrin and Michael Collins launched today in 1969 aboard Apollo 11 for one of the defining moments of the 20th century — man’s first landing on the moon.