2018-08-022018-08-021977-12-05http://hdl.handle.net/2152.3/9691A NASA Press Release regarding Dr. William Thornton's selection for the SpaceLab 1 MissionPress ReleaseSpaceLab 1SpaceLab #3NASADr. William ThorntonSTS-51B_SpaceLab_NASA_News_Press_Release_12.05.77