NASA's Curiosity Rover Discovers Mysterious Scale-Like Rock Formation on Mars

NASA’s Curiosity Rover recently encountered a striking geological feature on Mars—a rocky surface resembling the scales of a colossal reptile. The formation has left scientists intrigued about its origin.

Kevin M. Gill, an engineer at NASA’s Jet Propulsion Laboratory, shared images of the polygonal rock surface from the rover’s Mastcam. Curiosity, which has been exploring Mars since 2012, stumbled upon this unusual landscape while en route to a small crater.

"We’ve seen polygon-patterned rocks like these before, but they didn’t seem quite this dramatically abundant, stretching across the ground for meters and meters in our Mastcam mosaics."

NASA added that the rover is collecting extensive images and chemical data to evaluate hypotheses about the formation of these honeycomb-like textures.

The intriguing theory suggests these patterns may be ancient cracked mud banks, formed through repeated wet-dry cycles due to flowing water between 3.8 and 3.6 billion years ago, when Mars was warmer and wetter. This hypothesis is supported by a 2022 Nature paper.

Curiosity made this discovery while heading toward a 32-foot-diameter crater named Antofagasta, after a city and region in Chile. Researchers believe the crater may contain traces of organic chemicals, which could indicate the presence of ancient organisms.

Evidence of past life on Mars continues to emerge. Last year, NASA’s Perseverance Rover identified leopard-spotted rocks in Jezero Crater, potentially signaling biosignatures of long-dead microbes.

Further Reading on Mars

• Scientists Intrigued by "Negative Mass Anomaly" Beneath Mars’ Surface