Shuttle Endeavour Astronauts Arrive For Monday's Launch

CAPE CANAVERAL, FL - MAY 12: Space shuttle Endeavour crew Commander Mark Kelly waves as he walks off a plane with Pilot Gregory Johnson (L), after arriving at Kennedy Space Center on May 12, 2011 in Cape Canaveral, Florida. Commander Kelly's wife congresswoman Gabrielle Giffords, who was shot in the head at a meet-and-greet in her hometown of Tucson, Arizona, plans on attending the launch. Space shuttle Endeavour is scheduled to launch on its final flight to the space station on May 16th. (Photo by Joe Raedle/Getty Images)