The Death of a Supercontinent May Have Formed the Grand Canyon Close to a Billion Years Earlier than Once Thought, New Study Reveals

· Thedebrief · Aug. 20, 2026, 1:49 p.m.
Breaking News Science erosion escarpment Geology Earth Science Ancient History Grand Canyon
Summary
A new study suggests that the Grand Canyon may have formed nearly a billion years earlier than previously believed due to the breakup of an ancient supercontinent.
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