GRC Center Director, Dr. Marla Perez-Davis reacts to a presentation during the Retirement Reception for the Director of Aeronautics, Ruben Del Rosario

NASA Associate Administrator Steve Jurczyk presents retiring Marshall Space Flight Center Todd May with the NASA Distinguished Service Medal at the retirement ceremony for Mr. May.

The Ohio State University President E. Gordon Gee, left, Apollo 11 Astronaut Neil Armstrong, 2nd from left, Former space shuttle astronaut and former Under Secretary of the Air Force Dr. Ron Sega, and Captain Mark Kelly, commander of the space shuttle Endeavour’s final mission and husband of retired U.S. Representative Gabrielle Giffords, right, talk prior to a reception at Ohio State University honoring the 50th anniversary of John Glenn's historic flight aboard Friendship 7 Monday, Feb. 20, 2012, in Columbus, Ohio. Glenn was the first American to orbit Earth. Photo Credit: (NASA/Bill Ingalls)