NASA’s Curiosity rover has captured detailed images of unusual spiderweb-like formations on Mars, providing new evidence that groundwater once influenced the planet's surface. Known as boxwork, these formations create vast, web-like patterns that appear as low ridges and depressions when observed up close from the rover’s perspective.
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The structures are believed to have formed as water flowed through fractures in Martian bedrock, depositing minerals that solidified into ridges while the surrounding materials eroded away. Photographed during Curiosity’s climb of Mount Sharp in Gale Crater, these images offer an unprecedented view of a terrain that scientists have long examined from orbit.
Typically reaching heights of 1 to 2 meters, the ridges stretch for miles, resembling a giant spiderweb across the landscape. The discovery suggests that liquid water existed in this region much later than previously thought. Tina Seeger, a scientist involved in the mission, remarked that the presence of boxwork so high on the mountain indicates that the groundwater table must have been significantly elevated, allowing water potentially capable of supporting life to persist longer than expected.
Although the precise reasons for the nodule formations remain unclear, Seeger indicated that the ridges might have been initially cemented by minerals, with later groundwater episodes leaving nodules around them. Ongoing exploration aims to provide further insights into the timing and extent of water on Mars and its potential to have once supported life.