Captain Mark Kelly announced his retirement from the U.S. Navy and NASA on his Facebook page Tuesday. In a touching note, Kelly said he wanted to be with his wife, Rep. Gabrielle Giffords, who is recovering from a gunshot wound to the head which she suffered during the Tucson shooting that killed six people in January. “Gabrielle is working hard every day on her mission of recovery,” the astronaut said. “I want to be by her side.” Kelly and Giffords will also work on a memoir together, to be published by Scribner.
