Curiosity Rover Discovers Unique Polygonal Patterns on Mars

NASA’s Curiosity Mars rover has made an exciting find in a Martian valley known as Valle Grande, uncovering a vast field of honeycomb-shaped polygons. Previously, Curiosity had photographed these intriguing polygonal fractures, which measure about 1.5 to 3 inches wide, but this is the first time such a large expanse has been documented.

On June 19th and 20th (Martian sols 4,930 and 4,931), Curiosity captured a stunning 360-degree panorama showcasing this “sea of polygons,” revealing the unique texture stretching out in every direction. Project scientist Ashwin Vasavada noted that the team is meticulously analyzing the shapes and chemistry of these formations, hoping to uncover insights into their origins.

According to NASA, billions of years ago, the lower slopes of Mount Sharp—standing at 3 miles (5 kilometers) tall—were once dotted with lakes and streams, a journey Curiosity has been exploring since 2014. The presence of these polygons in Valle Grande suggests that water may have existed there in the past, as indicated by earlier findings of smaller polygon patches. Some of these formations are believed to have originated from mud cracks, but various processes could have contributed to their honeycomb appearance, including temperature fluctuations and the compression of sediments that expelled water when buried.