OTD…Oct. 15 and Cassini

#OTD…The first launch of Challenger in 1983 and Columbia’s shortened Spacelab mission in 1997

#OTD in 1989, Discovery launched a new Tracking and Data Relay Satellite

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.