Developed together, the twin Mariner 1 and 2 spacecraft were based on the Ranger lunar probe and planned for a joint mission to our closest neighboring planet. The probes featured seven instruments for studying Venus’ atmosphere, temperature, and magnetic field. On July 22, 1962, Mariner 1 launched, but the spacecraft was destroyed only minutes intoContinue reading “Dec. 14, 1961: Mariner 2 flies by Venus”
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