OTD…June 20 and STS-78 and NROL-38

#OTD in 1997…Cassini was launched on its billion-mile trek to Saturn

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