OSU President Burns Hargis, left, expresses his appreciation to astronaut Lt. Gen. , USAF (Ret.) Thomas P. Stafford, after he delivered remarks to the graduates. During an afternoon ceremony, Hargis presented an honorary degree to Stafford on behalf of Oklahoma State University. Undergraduates at OSU participated in the school's 127th commencement ceremony the weekend of Friday, May 3 and Saturday, May 4, 2013 inside Gallagher-Iba Arena on the university's campus.These photos were taken at the Saturday morning ceremony when students from the College of Agricultural Sciences and Natural Resources, and the Spears School of Business were conferred with degrees. Photo by Jim Beckel, The Oklahoman.