NASA's Magellan Mission Was the Next Big Mission

The Soviets managed to take advantage of every single launch window to get to Venus from the early 60s all the way out to the mid 80s. So now fast forward though, then we had the Magellan, which was a very successful NASA spacecraft. But it continued to show us that there's no evidence of plate tectonics and hinting at the fact that maybe Venus has this weird crust that just completely upheavs itself in some sort of mass volcanism.