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Venera 10
Venera 10 (click to enlarge)

Venera 10
Date: 14 Jun 1975

Venera 10 arrived at Venus three days after its twin. Though 2,200 km (1,367 miles) closer to the equator than Venera 9, the Venera 10 lander measured a temperature only 5°C (9°F) hotter. Atmospheric pressure at the surface was found to be 92 times that of Earth at sea level. As in the Venera 9 mission, the orbiter served as a communications relay for the lander while imaging the atmosphere in ultraviolet light and conducting other experiments. The lander transmitted data for a then record 65 minutes, including a panoramic picture of Venus' surface. Gamma ray readings suggested a basaltic surface in agreement with measurements by Venera 9, though the landscape appeared to be older than that of Venera 9's landing site.

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