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Lockheed Martin Space Systems Company is one of the four major business divisions of Lockheed Martin. It has its headquarters in Denver, Colorado with additional sites in Sunnyvale, California; Santa Cruz, California; Huntsville, Alabama; and elsewhere in the US and UK. The division currently employs about 16,000 people, and its most notable products are commercial and military satellites, space probes, missile defense systems, NASA's Orion Multi-Purpose Crew Vehicle, and the Space Shuttle External Tank.

The Lockheed Missile Systems Division was established in Van Nuys, Ca. in late 1953 to consolidate work on the Lockheed X-17 & X-7. The X-17 was a three-stage solid-fuel research rocket designed to test the effects of high mach atmospheric reentry. The X-17 was also used as the booster for the Operation Argus series of three high-altitude nuclear tests conducted in the South Atlantic in 1958. The Lockheed X-7 (dubbed the "Flying Stove Pipe") was an American unmanned test bed of the 1950s for ramjet engines and missile guidance technology.

Lockheed Missiles Division moved from Van Nuys, CA, to the newly constructed Palo Alto, Ca. facility in 1956, then to the larger Sunnyvale facility in 1957. The Polaris missile was the first major new program for both locations, followed later by satellite programs, thus the name change to Lockheed Missiles and Space Division.

The UGM-27 Polaris was a Submarine Launched Ballistic Missile (SLBM) built during the Cold War by Lockheed Missiles & Space Division in Sunnyvale, Ca. for the United States Navy. The Polaris program started development in 1956, with its first flight test in 1958. In 1962, the USS Ethan Allen successfully fired a Polaris A-1 missile against a test target in 1960. The SLBM has evolved through Polaris (A2), Polaris (A3), Poseidon (C3) Trident I (C4) and ongoing with today's Trident II (D5). All of these were designed and managed at the Sunnyvale CA facility. Together, these are known as the Navy's Fleet Ballistic Missile (FBM) Program. Lockheed Martin has been the sole provider of FBM missiles since 1956.


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