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Extras

    Video thumbnail: NOVA Secrets of the Ghost Forest

    NOVA

    Secrets of the Ghost Forest

    Meet the earthquake that drowned the Pacific Northwest.

    Secrets of the Ghost Forest

    Video thumbnail: NOVA Making North America: Origins Preview

    NOVA

    Making North America: Origins Preview

    Experience the colossal geologic forces that shaped our continent over 3 billion years.

    Making North America: Origins Preview

    Video thumbnail: NOVA Time Travel in the Grand Canyon

    NOVA

    Time Travel in the Grand Canyon

    What does this geological wonder reveal about North America’s deep history?

    Time Travel in the Grand Canyon

    Video thumbnail: NOVA Making North America Sneak Peek

    NOVA

    Making North America Sneak Peek

    Host Kirk Johnson explores how the continent was shaped—and how it shaped us.

    Making North America Sneak Peek

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