The Soviet Venera 4 probe descended into the atmosphere of Venus on 18 October 1967 and transmitted the first direct chemical analysis of another planet's atmosphere, showing it to be mostly carbon dioxide.
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The Soviet Venera 4 probe descended into the atmosphere of Venus on 18 October 1967 and transmitted the first direct chemical analysis of another planet's atmosphere, showing it to be mostly carbon dioxide.
The year in which a spacecraft first transmitted direct measurements taken inside the atmosphere of another planet.
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Permanent ID limitsregistry.com/limits/LR-FIRST-PROBE-TO-ANALYZE-ANOTHER-PLANETS-ATMOSPHERE
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Limits Registry. LR-FIRST-PROBE-TO-ANALYZE-ANOTHER-PLANETS-ATMOSPHERE. First in-place analysis of another planet's atmosphere. 2026.