How are sand dunes formed and why do they even exist?

The strange, beautiful shapes that sand dunes form are a mystery. Now researchers are conducting huge desert experiments and using dune racetracks to figure it out

California's Mysterious Sand Dunes

13 Deserts – An Introduction to Geology

What is the Tallest Sand Dune in the World?

Great Sand Dunes National Park offers more than meets the eye

How are sand dunes formed and why do they even exist?

Dune: how high could giant sand dunes actually grow on Arrakis?

Great Sand Dunes National Park and Preserve - Wikipedia

Be Smart Sand Dunes Shouldn't Exist (Here's Why They Do

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Sand Dunes 'Communicate' as They Migrate, Smart News

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