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12/05/1965 Soviet spacecraft Luna 5 crashes on the Moon

Luna 5 was an unmanned Soviet spacecraft built to land on the Moon as part of the Luna programme. It was intended to become the first spacecraft to achieve a soft landing on the Moon, however its retrorockets failed, and the spacecraft began spinning around its main axis due to a problem in a flotation gyroscope in the I-100 guidance system unit. A subsequent attempt to fire the main engine failed because of ground control error, and the engine never fired. As a result of these failures, the soft landing attempt failed, and Luna 5 impacted the Moon.