Вене́ра, pronounced [vʲɪˈnʲɛrə] 'venus') program was a series of space probes developed by the soviet union between 1961 and 1984 to gather information about the planet venus Ten probes successfully landed on venus and transmitted data from the surface. Venera, any of a series of unmanned soviet planetary probes that were sent to venus
Radio contact was lost with the first probe, venera 1 (launched feb The venera series of satellites were launched by the soviet union to study venus and its environment 12, 1961), before it flew by venus.
From 1961 to 1984 the soviet union carried out a program of exploration of venus using venera spacecraft In 1967 venera 4 entered the atmosphere and obtained direct measures of temperature and pressure (avduevskii, v.s., et al.).