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
Source:
https://www.newscientist.com/article/mg24833081-000-how-are-sand-dunes-formed-and-why-do-they-even-exist/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home