Located on the lunar far-side (20.4° S, 129.1° E), the interior of Tsiolkovskiy Crater is filled with Upper Imbrium aged mare basalt. The 185 km diameter impact crater is named after the Russian physicist and space pioneer Konstantin E. Tsiolkovskiy (1857 - 1935). The first image of this crater was acquired by the Soviet Luna III robotic spacecraft in 1959. Read more about Tsiolkovskiy crater here, view the LROC NAC Youtube movie, and browse the full-resolution NAC image below!
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