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Geography

How Aeolian Processes Shape Star Dunes in Hyperarid Sand Seas

Quick fact

Star dunes are the tallest dunes in the world, reaching heights of over 300 meters—taller than the Eiffel Tower—yet they are built entirely by wind and sand.

Why this is interesting

Imagine a mountain of sand that grows into a star shape, yet never stops moving. How does a desert wind create such a perfect pyramid?