OTD…Aug. 18 and STS-68 abort

#OTD in 1985…Challenger suffered an engine shutdown on her way to orbit for a Spacelab mission

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 1989…Columbia launched with a classified communications satellite for the Defense Department