Phys iconPhysSep 21, 2026

The Red Planet has a purple side

The dusty reds, ochers, browns and tans give the planet its nickname: the Red Planet. Swirls of pink, purple and red highlight the region and a feature named Thyles Rupes, an icy crag with cliffs higher than 1 km (0.6 miles).

The Red Planet has a purple side

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The dusty reds, ochers, browns and tans give the planet its nickname: the Red Planet.

Swirls of pink, purple and red highlight the region and a feature named Thyles Rupes, an icy crag with cliffs higher than 1 km (0.6 miles).

Rupes means cliff in Latin, while Thyles is a mythical northern land spoken of in the ancient world.

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The useful part

The dusty reds, ochers, browns and tans give the planet its nickname: the Red Planet. Swirls of pink, purple and red highlight the region and a feature named Thyles Rupes, an icy crag with cliffs higher than 1 km (0.6 miles). Rupes means cliff in Latin, while Thyles is a mythical northern land spoken of in the ancient world.

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  • New images of Mars' south polar region show something different.

Details worth keeping

Oxidized iron dominates the Martian color palette.

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