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Can South Carolina's Salt Marshes Be Saved?
Beyond being important to both the economy and marine life in the South, salt marshes also serve as buffers, shielding communities on the coast from erosion and dangerous weather events. But in South Carolina, which boasts the largest expanse of salt marsh of any Atlantic state, these ecosystems are in decline.
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Archaeologists investigate the dramatic origins of democracy in ancient Greece 2,500 years ago.
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Follow the Artemis mission to bring humanity back to the Moon for the first time since Apollo.
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What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.