Astronaut Jim Voss will give the commencement address on Friday, May 9, during the University of Colorado at Boulder spring commencement ceremony. The ceremony, which is free and open to the public, will begin at 8:30 a.m. in Folsom Stadium, where 4,943 degrees will be conferred. Guests are asked not to bring large purses or bags to the ceremony, and people entering the stadium may be subject to search.