Stock Photo - 06/21/1993 __ The first flight of the commercially developed SPACEHAB laboratory module begins with the flawless liftoff of the Space Shuttle Endeavour from Launch Pad 39B at 9:07:22 a.m. EDT, June 21. Also planned for the eight_day flight of Mission STS_57 is the retrieval of the European Retrievable Carrier EURECA. Onboard for the fourth flight of Endeavour are a crew of six: Mission Commander Ronald J. Grabe, Pilot Brian Duffy, Payload Commander G. David Low, and Mission Specialists Nancy Jane Sherlock, Peter J.K. Jeff Wisoff, and Janice E. Voss. A first launch attempt on June 20 was scrubbed due to unacceptable weather conditions both at KSC and the overseas contingency landing sites.