Dunes Trapped in a Crater on Mars Form This Interesting Pattern – Universe Today

Symmetry in nature is pleasing to look at, and even more so when that symmetry is novel. Theres plenty of it to see on Earth, as biological processes have a penchant for patterns. But finding it off-world is trickier, and sometimes more striking. Which is why a picture from HiRISE of some Martian dunes is so spectacular.

The picture was actually taken back in 2010, inside of a crater in Noachis Terra, in the red planets southern hemisphere, around 38 degrees by -42.5 degrees in latitude / longitude. The Mars Reconnaissance Orbiter HiRISE is riding along with was about 252 km above the planets surface when it snapped the image, which covers an area of about 25 square kilometers.

Even with that relatively large size, the image still resolves objects that are less than a meter in size. But the most striking feature of the pictures is the similarity between the dunes, which are actually the thin dark lines. The area between them, the slightly lighter reddish material, is covered in boulders that appear as dots in the image.

Mars and Earth arent the only worlds in the solar system with these fascinating types of dunes. In fact, Titan has the Solar Systems largest linear dune field. Maybe well get a glimpse of those in high resolution when Dragonfly makes a visit to Saturns largest moon in 2034.

Learn More:UA Dune SymmetryFlicker Dune Symmetry

Lead Image:Symmetric dunes on Mars.Credit: NASA / JPL / University of Arizona

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Dunes Trapped in a Crater on Mars Form This Interesting Pattern - Universe Today