NASA’s Curiosity Mars Rover Discovers Field of Honeycomb Textures
A close-up of the polygon fractures discovered by NASA’s Curiosity Mars rover highlights their honeycomb-like textures.
NASA’s Curiosity rover discovered an expanse of terrain covered in surface features called polygons. Scientists have never seen so many of these features in one place and are unsure how they formed. A panoramic view of a sweeping Martian plain covered in patterned fractures leading toward distant hills showcases the terrain explored by NASA's Curiosity rover to investigate the planet's past environment.
NASA’s Curiosity Mars rover captured this sand-capped butte, nicknamed “Miraflores,” estimated to be about 20 feet (6 meters) tall, on June 11, 2026. The surrounding area includes an expanse of terrain covered in surface features called polygons.
Image Description: A layered, rocky mound topped with smooth sand sits amid a vast, rocky expanse on Mars, illustrating the complex geological history being studied by NASA's Curiosity rover.
As NASA’s Curiosity rover recently began climbing up a Martian valley nicknamed “Valle Grande,” it sent back images that were a familiar sight to mission scientists—honeycomb-like textures called polygonal fractures, each one about 1.5 to 3 inches (4 to 8 centimeters) across. The mission has spotted small patches of these geometric shapes several times before, but nothing at the scale discovered in Valle Grande. Mission scientists have never seen so many of the many-sided geologic features in one place on the Red Planet.
In a 360-degree panorama that the rover captured on June 19 and 20, 2026, the 4,930th and 4,931st Martian days, or sols, of the mission, the polygonal shapes spread in all directions for as far as the rover can see. They even wrap around the sides of a nearby butte nicknamed “Miraflores” that stands 20 feet (6 meters) tall and is topped with a thick cap of sand.
“We’ve seen a lot of fascinating landscapes through Curiosity’s eyes, but this sea of polygons took our breath away,” said the mission’s project scientist, Ashwin Vasavada of NASA’s Jet Propulsion Laboratory in Southern California. “We measured their shapes and chemistry carefully and are hopeful there are clues in the data as to how these features formed.”
Cases of polygons that the mission has spotted in the past clearly formed as mud cracks, although a variety of processes can contribute to their honeycomb textures, including cycles of warm and cold temperatures or compression that squeezed water out of the sediment when the surface was buried.
These newly discovered polygons are among the many surprises Curiosity has trundled across since landing on Mars 14 years ago, on Aug. 5, 2012. Besides sulfur crystals, shiny meteorites, and other interesting geologic features, the rover has made major discoveries about the ancient Martian environment—most importantly, that it had the water, chemistry, and nutrients to support microbial life.
Billions of years ago, lakes and streams dappled the lower foothills of Mount Sharp, a 3-mile-tall (5-kilometer-tall) mountain that Curiosity has been ascending since 2014. The rover has previously uncovered chemistry left over from Mars’ watery history, including carbon-based molecules believed to be precursors to RNA and DNA, two nucleic acids that carry genetic information. Scientists have no way of knowing whether these organic molecules were created by biologic or geologic processes—either path is possible—but their discovery reconfirmed that ancient Mars had the right chemistry to support life.
Managed by Caltech in Pasadena, JPL built Curiosity and leads the mission on behalf of NASA’s Science Mission Directorate in Washington as part of the agency’s Mars Exploration Program portfolio.
Celebrating 13+ Years on Mars (2012-2026)
Mission Name: Mars Science Laboratory (MSL)
Rover Name: Curiosity
Main Job: To determine if Mars was ever habitable to microbial life.
Launch: Nov. 6, 2011
Landing Date: Aug. 5, 2012, Gale Crater, Mars
Image Credit: NASA/JPL-Caltech/MSSS
Release Date: July 29, 2026
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