OTD…April 28 and STS-39

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.

#OTD in 2005…Discovery launched on the first space shuttle mission after the Columbia tragedy

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