OTD…July 26 and STS-114

#OTD in 1990…Discovery launched the Ulysses probe bound for the sun

The first crew to inhabit Skylab — Conrad, Weitz and Kerwin — launched today in 1973 for a 28-day mission that successfully made critical repairs, brought the station into operation and conducted solar astronomy, Earth resources and medical experiments.

#OTD in 2006…A star-spangled start to Discovery’s STS-121 mission