Lunokhod program

Lunokhod (Russian: Луноход, "Moonwalker") was a series of Soviet robotic lunar rovers designed to land on the Moon between 1969 and 1977.

The 1969 Lunokhod 1A (Lunokhod 0, Lunokhod No.201) was destroyed during launch, the 1970 Lunokhod 1 and the 1973 Lunokhod 2 landed on the moon and Lunokhod 3 (Lunokhod No.205, planned for 1977) was never launched. The successful missions were in operation concurrently with the Zond and Luna series of Moon flyby, orbiter and landing missions.

The Lunokhods were primarily designed to support the Soviet manned moon missions during Moon race. Instead, they were used as remote-controlled robots for exploration of the lunar surface and return its pictures after the successful Apollo manned lunar landings and cancellation of Soviet manned moon program.

The Lunokhods were transported to the lunar surface by Luna spacecraft, which were launched by Proton-K rockets. The moon lander part of the Luna spacecraft for Lunokhods were similar to the ones for sample return missions. The Lunokhods were designed by Alexander Kemurdzhian at Lavochkin.

Not until the 1997 Mars Pathfinder was another remote-controlled vehicle put on an extraterrestrial body. In 2010, nearly forty years after the 1971 loss of signal from Lunokhod 1, the NASA Lunar Reconnaissance Orbiter photographed its tracks and final location, and researchers, using a telescopic pulsed-laser rangefinder, detected the robot's retroreflector.

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