One Cool Thing: Blue Dunes on the Red Planet?

Image: NASA/JPL-Caltech/ASU

It’s hard to keep up with all the cool NASA news from the Mars mission.  Last week, they released these stunning images of an area about 19 miles (30 kilometers) wide in Mars’ northern polar cap region taken by NASA’s Mars Odyssey orbiter nearly 20 years ago, but now seen with color enhancement.  The colors are a filter that shows the widely varying temperature differences between the dunes – the blue ones are colder areas and warmer features are seen as a yellowish-orange color, according to NASA.  There are “seas of dunes” at Mars’ northern polar cap, which are formed into long and weaving lines by winds over time, but also in various other locations on the red planet.  And for last week’s Mars wonders, click here to learn about the helicopter flights of the current mission on Mars.

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