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The Red Planet Has a Purple Side

Mars appears red because of iron oxides in the regolith. But it's not uniformly red. Different lighting conditions and different materials accumulated on the surface can make it appear purple, as in these images from Mars Express and its High-Resolution Stereo Camera.

The Red Planet Has a Purple Side

We haven't written up this one. Universe Today has the full story — the link below goes straight to it.

Read the original at universetoday.com →

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