Caloris Basin, the largest feature known on Mercury. Only 40 percent of the planet's surface was imaged during the Mariner 10 flybys in the 1970's. IMAGE: ESA
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Caloris Basin, the largest feature known on Mercury. Only 40 percent of the planet's surface was imaged during the Mariner 10 flybys in the 1970's. IMAGE: ESA |
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