Curiosity Mars Rover captured this on Martian sand on February 13, 2022

Intriguing rock formation on the Mars surface was discovered by Curiosity Rover right before the drilling procedure on February 13, 2022. This particular rock displayed a unique structure that caught the attention of the rover's scientists. The presented images were captured as the rover prepared the surface to analyze the rock's composition.

Curiosity Rover has been actively exploring the Martian surface for over nine years, drilling more than 20 holes in Mars' rocks, and discovering carbon as one of the signs of organic past. These findings have been essential in the search for possible signs of life on Mars, as organic molecules containing carbon are a critical component of living organisms.
In my personal opinion these findings have also shed light on the formation of regolith structures on Mars. Regolith refers to the loose, unconsolidated material that covers the solid bedrock on the planet's surface. The Mars regolith is composed of a mix of minerals, including iron oxides, which give the planet its reddish color, and silicates, which make up the majority of the regolith.

I think the regolith on Mars is subject to a variety of geological processes, including erosion, deposition, and impact cratering. These processes result in the formation of unique structures and patterns on the Martian surface. For example, the "swiss cheese" terrain, found in certain regions of Mars, is believed to have been formed due to the sublimation of ice beneath the regolith, causing the collapse of the surface material.

Link to NASA’s Curiosity source image of presented rock: https://mars.nasa.gov/raw_images/1025...

Credit: nasa.gov, NASA/JPL-Caltech, NASA/JPL-Caltech/ASU
Credit: lcdm.ca/msl h/t @PaulHammond51

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