July 20, 1969: Lunar landing of Apollo 11

#OTD in 2002…Atlantis launched the outward expansion of the space station’s truss backbone

#OTD in 2007…Discovery launched Harmony as the gateway to future international science laboratories

American and Soviet crews were launched today in 1975 for the first handshakes in space between the two superpowers as part of the Apollo-Soyuz Test Project.