Episode Details

Scientists have uncovered evidence of a colossal ancient river—three miles wide—that once carved through the Sahara Desert millions of years ago, challenging our view of the region’s arid past. Using satellite imagery and geological data, researchers revealed buried river channels from the early to mid-Pleistocene, when the Sahara was lush and teeming with water. This discovery reshapes our understanding of climate change, landscape evolution, and early human migration, as such a river would have been a lifeline for ecosystems and civilizations. Ongoing studies aim to map its full extent and uncover more about its flow and environment, reminding us that even the driest deserts once hosted mighty rivers.

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