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  • EarthViewer


    Click & Learn

    Download the accompanying student worksheet under "Downloads." What did Earth look like 250 million years ago? Or 1 billion years ago? Or 4.5 billion years ago? EarthViewer is an interactive tool that allows you to explore the science of Earth's deep history.

  • Changing Planet: Past, Present, Future

    Changing Planet: Past, Present, Future


    Has Earth changed over deep time? How did Earth shape life and life shape Earth? What does Earth's climate in the distant past tell us about the future?