earth history

  1. VIDEO Experts Have Just Revealed The Grand Canyon Is Missing Over A Billion Years Worth of Rocks

    :curious: :curious:
    • whoosh
    • Thread
    • earth history geologic time scale grand canyon rock record
    • Replies: 1
    • Forum: The Water Cooler

  2. VIDEO Earths Lost Super Civilization

    :zoned:
    • whoosh
    • Thread
    • ancient civilizations earth history lost civilizations super-civilizations
    • Replies: 1
    • Forum: The Water Cooler

  3. VIDEO How We Know The Earth Is Ancient

    :cool:
    • whoosh
    • Thread
    • earth history geologic time geology radiometric dating
    • Replies: 1
    • Forum: The Water Cooler