OTD…April 29 and STS-51B

#OTD in 1988…Discovery returned Americans to space after the Challenger accident

Mankind’s first landing on the Moon and stepping foot on the lunar surface occurred today in 1969 by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin.

#OTD in 1991, 1992 and 1993…flights by Discovery and Endeavour