HOUSTON, June 21 (UPI) -- Veteran astronaut Mark Kelly, the husband of Rep. Gabrielle Giffords, D-Ariz., says he is retiring from NASA and the U.S. Navy.
"Today, I am humbled to announce that after 25 years of service to our country, I am retiring from the United States Navy and leaving NASA, effective Oct. 1," Kelly, 47, said in a statement posted on Facebook.