OTD…May 4 and STS-30

#OTD in 1993…Endeavour launched with the first Spacehab module and retrieval of the European EURECA satellite

#OTD in 2012…Shuttle reaches retirement roost in sunny SoCal

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.