After leading the United States' successful scientific effort to become the first nation to develop the atomic bomb, Robert Oppenheimer spent the rest of his life advocating for international arms control. He lost his security clearance and position with the government as a result.
And paleontologists have discovered 3.7 million years-old footprints made by the largest hominid yet discovered (likely a member of Australopithecus afarensis, like "Lucy"!).
This is our final episode of Season 2! We'll be away for the next month to plan the next season and the first episode of Season 3 will be posted on the first Monday in March. See you all again soon!
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