What milestone did the Soviet Venera 7 mission achieve in 1970?
Answer
The first successful soft landing on the surface of another planet
The Venera 7 probe, part of the Soviet Union's Venera program, arrived at Venus in 1970 and accomplished the historic feat of achieving the first successful soft landing on the surface of another planet. The probe transmitted signals for approximately 23 minutes, enduring the extreme heat and crushing atmospheric pressure before its systems finally succumbed to the environment.

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