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NOVA
Ancient Earth: Frozen
Season 50
Episode 12
700 million years ago, Earth was a giant snowball cloaked in ice from pole to pole. How did life manage to hold on through this deadly deep freeze, find creative ways to bounce back, and thrive in the dramatically different world that emerged?
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The story of the dolphin reveals how intelligence evolved, step by step, over billions of years.
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Step into the stunning cave that’s reshaping our understanding of prehistoric art.
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Witness how Native North Americans have generated scientific knowledge over thousands of years.
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Follow the relentless quest that led to a breakthrough treatment for a deadly disease.
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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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Surprising evidence at the world’s oldest temple overturns our understanding of human history.
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New evidence sheds light on the remarkable life—and mysterious collapse—of the ancient jungle city.