While Rep. Giffords recovers, her staff has continued to work. As this file photo of the office's in/out board shows, though, they do so knowing that one aide — Gabe Zimmerman — was killed in the Jan. 8 rampage. Allen Breed/AP hide caption

itoggle caption Allen Breed/AP

May 28, 2008, file photo: Space shuttle Discovery commander Mark Kelly, right, gestures as he walks with his twin brother astronaut Scott Kelly, left, and mission specialist Ron Garan, after arrival at Kennedy Space Center in Cape Canaveral, Fla. Terry Renna/AP hide caption

itoggle caption Terry Renna/AP

Gloria Giffords (center), Rep. Gabrielle Gifford's mother, talks with her daughter on the flight to Houston. Capt. Mark Kelly (far left), the representative's husband, talks with Tracy Culbert (center right), a nurse. Office of U.S. Rep. Gabrielle Giffords hide caption

itoggle caption Office of U.S. Rep. Gabrielle Giffords