OTD…Sept. 21 and Endeavour retirement

Scott Carpenter launched atop an Atlas rocket to become the second American to orbit the Earth today in 1962, flying for 4 hours and 39 minutes aboard Aurora 7 while making three revolutions of the globe.

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

#OTD in 2002…Atlantis launched the outward expansion of the space station’s truss backbone