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Strange stacked stones spotted on Mars | Space photo of the day for May 21, 2026
- Perseverance captured a stack of rocks on the Martian surface on May 13, 2026.
- Experts think wind erosion or ancient water activity likely formed the stack.
- The feature is unlikely to be a deliberate marker or human-made stack.
- NASA uses Mastcam-Z to observe Martian features from a high vantage point.
- The rover's findings contribute to understanding Mars' geological history.
- Space.com frames the discovery within ongoing Mars rover research and exploration.
- The article notes a common caution about misinterpreting rock formations.
- The find is part of NASA's broader Mars exploration narrative.
- The article explains the image date as Sol 1859 for the rover.
- This Martian rock stack joins a history of odd formations reported by rovers.
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