NASA's Curiosity rover captured honeycomb-like polygonal fractures on a Martian plain, with individual polygons about 1.5 to 3 inches wide (4–8 cm) that extend around a 20-foot (6 m) butte called Miraflores. Some polygons show signs of former mud cracks, suggesting wet-dry cycles or compression that expelled water from sediments. The findings support evidence of ancient water activity near Mount Sharp and complement previous detections of carbon-based molecules, though their biological or geological origin remains uncertain.
NASA's Curiosity Reveals Honeycomb-Like Fractures on Mars — Clues to Ancient Water
See it: NASA's Curiosity rover captures stunning images of honeycomb-like textures while exploring Mars
NASA's Curiosity rover has sent back striking new images of the Martian surface showing honeycomb-like polygonal fractures across a dry plain. Each polygon measures roughly 1.5 to 3 inches wide (about 4 to 8 cm), and the pattern radiates outward from the rover's viewpoint, continuing around a nearby butte nicknamed Miraflores.
What Scientists Observed
The polygons extend across the plain and wrap around Miraflores, a roughly 20-foot (6-meter) tall butte capped with sand. Researchers have measured the shapes and analyzed local chemistry to better understand how these textures formed.
"The polygonal shapes spread in all directions for as far as the rover can see," NASA reported, noting that the textures even wrap around the sides of Miraflores.
How These Features May Have Formed
Some polygons show evidence consistent with ancient mud cracks. That pattern could result from repeated wet-dry cycles — warming and cooling episodes that cracked mud as it dried — or from compression that squeezed water out of sediments when layers were buried. Both scenarios point to interactions with water in Mars' past.
Why This Matters
These observations add to a growing body of evidence that water once shaped landscapes near Mount Sharp, the roughly 3-mile (5-kilometer) tall mountain Curiosity has been climbing since 2014. The rover has also detected carbon-based molecules in these strata that are considered potential precursors to RNA and DNA, although researchers cannot yet determine whether those organics formed through biological or purely geological processes.
Even if Mars never hosted life, understanding how water and chemistry interacted on the planet helps scientists reconstruct ancient environments and guides future exploration — including where to look for preserved biosignatures and how water resources might be used for eventual human missions.
Next Steps
Scientists will continue mapping the polygons, studying their chemistry, and comparing them to similar textures on Earth to narrow down formation mechanisms. These photogenic honeycomb patterns present attractive targets for ongoing study as Curiosity continues its ascent of Mount Sharp.
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