Curiosity Sees Martian Sulfur Up Close

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HQ Web Team

This close-up view shows fragments of sulfur crystals — the first ever seen on the Red Planet. The crystals were found after NASA’s Curiosity Mars rover happened to drive over a rock and crush it on May 30, 2024. Several days later, Curiosity used a camera on the end of its robotic arm to take this image.

A recent paper in Science suggests that the sulfur formed when magma deep below the surface released fluids or gases that deposited sulfur on the Red Planet’s surface about 3 billion years ago.

Image credit: NASA/JPL-Caltech/MSSS