On This Date…March 13 and STS-29

#OTD in 2001, Discovery launched on STS-102 to exchange crews aboard the International Space Station

#OTD in 2009…Endeavour launched to complete the Japanese segment of the International Space Station

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.