OTD…Oct. 5 and STS-41G

#OTD in 2001…Discovery launched on an International Space Station crew exchange mission

#OTD in 1991…The launch of Columbia on Spacelab Life Sciences 1 mission

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.