Technicians monitor the progress as the tail cone is installed around space shuttle Discovery's three replica shuttle main engines for protection.

Inside Orbiter Processing Facility-1 at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as the tail cone is installed around space shuttle Discovery’s three replica shuttle main engines for protection.

The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery. Discovery is being prepared for display at the Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann