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Lockheed Martin's Space Division started in the production of missiles and later ICBM's in the 1950s. Their TITAN missile system was used for 12 Gemini spacecraft and the Voyager probes. They have worked largely in collaboration with NASA on many of their probes, landers, and spacecraft, and hope to play a key role in NASA's return to the moon in 2024.
Helios-A and Helios-B (also known as Helios 1 and Helios 2), are a pair of probes launched into heliocentric orbit for the purpose of studying solar processes. A joint venture of West Germany's space agency DFVLR (70% share) and NASA (30%), the probes were launched from Cape Canaveral, Florida, on December 10, 1974, and January 15, 1976, respectively. Built by Messerschmitt-Bölkow-Blohm as the main contractor, they were the first spaceprobes built outside the United States or Soviet Union.
Height 48.80 Meters
Max Stages 4
Mass To GTO 0 kg
Liftoff Thrust 12991 kN
Diameter 3.05 Meters
Mass To LEO 15400 kg
Liftoff Mass 632 Tonnes
Launch Success 6
Consecutive Success 6
Maiden Flight 1974-02-11
Launch Failures 1