OTD…June 27 and STS-4 and STS-71

#OTD in 1991…Atlantis launched another of NASA’s Tracking and Data Relay Satellites

#OTD in 1992…Discovery launched with the first International Microgravity Laboratory.

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.