OTD…Aug. 27 and STS-51I

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…The first launch of Challenger in 1983 and Columbia’s shortened Spacelab mission in 1997

OTD…Launch of Discovery in 1991 on a Defense Department research flight