Tuesday, May 16, 2017
Venera 5, Russian probe, lands on Venus 1969
Venera 5 entered the Venusian atmosphere May 16, 1969, just one day before its sister ship Venera 6 arrived. The Soviets had constructed Venera 5 and 6 to be more rugged, based on the data received from Venera 4. Venera 5 was equipped with smaller parachutes although heavier than Venera 4 so it could enter the atmosphere quicker and send back more data.
Entering the dark side of the planet, Venera 5 successfully transmitted information on the Venusian atmosphere for 53 seconds before failing.