sand dunes

At first, the name sounds like an ancient trading method, but it is actually the name of a marine species with many interesting facts.

Sand dunes in front create turbulence affecting the sand behind, causing two sand dunes to move with the same frequency and shape.

The message has been solved. But scientists are trying to explain how these Morse-coded dunes are formed.

These deep holes mark the position of large sand dunes that are raised hundreds of feet above the surface billions of years ago.

NASA has announced a strange and colorful sand dune structure that has been sent back to Earth by the Reconnaissance Orbiter.

5 threats to the stability of coastal sand dunes: Tourism activities; excessive grazing; invaded by other plants and animals; eroded when sea level rises; golf course, sand

The image of this mysterious

In the 1890s, when Percival Lowell first saw Mars through a telescope, he discovered some noticeable features on the planet, namely: there were many grooves intersecting each other

The sand dunes on the surface of Titan, Saturn's moon, are shaped like sand dunes, even very much like the deserts on Earth.

Summer on Mars, similar to Earth, most of the planet's ice around the South Pole is melting in warm weather.