Venera 5 was a space probe in the Soviet space program Venera for the exploration of Venus. Venera 5 was launched towards Venus to obtain atmospheric data. The spacecraft was very similar to Venera 4 although it was of a stronger design. The launch was conducted using a Molniya-M rocket, flying from the Baikonur Cosmodrome. When the atmosphere of Venus was approached, a capsule weighing 405 kg (893 lb) and containing scientific instruments was jettisoned from the main spacecraft. During satellite descent towards the surface of Venus, a parachute opened to slow the rate of descent. For 53 minutes on 16 May 1969, while the capsule was suspended from the parachute, data from the Venusian atmosphere were returned.

Wikipedia: https://en.wikipedia.org/wiki/Venera_5. Related NASA reference: https://nssdc.gsfc.nasa.gov/planetary/chronology.html#1969. Description adapted from Wikipedia contributors (CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/).