What are the mysterious “blue dunes” on Mars, and why they show us something very important

NASA’s Mars Reconnaissance Orbiter has sent us images of the surface of Mars that apparently show wonderful and unexpected blue dunes in Gamboa Crater in the planet’s northern hemisphere.

In fact, that scenario has been processed by the probe system into what is called “false color”, transforming subtly distinct wavelengths of light into a hue that suddenly becomes very noticeable.


NASA / JPL-Caltech / University of Arizona

Processing the data in this way highlights contrast in the regions and features of the Martian surface, offering planetary scientists a truly ingenious tool for understanding the geological and atmospheric processes of the Red Planet.

In particular they pointed out the Trasverse Eolian Ridges, sandy depressions typical of Mars, whose conformation, in these images, makes us go back to the way the wind blew when they were formed, giving us valuable information on the conformation of the planet.

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About Alex Marcell

He likes dogs, pizza and popcorn. Already a fanboy of Nintendo and Sony, but today throws anything. He has collaborated on sites and magazines such as GameBlast, Nintendo World, Hero and Portal Pop, but today is dedicated exclusively to Spark Chronicles.

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