The Pentagon’s Missile Defense Agency has awarded Lockheed Martin [LMT] a $29 -million contract modification to continue integrating a version of the SM-3 missile into the sea-based Aegis Ballistic Missile Defense system. An SM-3. Photo by Raytheon. The non-competitive contract modification calls on Lockheed Martin to further integrate the Raytheon [RTN]-built Standard Missile-3 Block IIA under development in a joint U.S.-Japanese program into the Aegis 5.1 baseline. The missile is a 21-inch diameter version of the SM-3. The award covers additional…