looks like desert varnish
WATSON autofocus gif
Mars Perseverance Sol 1465: WATSON Camera gif
NASA's Mars Perseverance rover acquired these images using its SHERLOC WATSON camera, located on the turret at the end of the rover's robotic arm.
Images acquired on April 4, 2025 (Sol 1465) at the local mean solar time of 14:23:44 to 14:29:31.
Image Credit: NASA/JPL-Caltech
Assembled by Barley Culiner with GIMP
Mars Perseverance Sol 1465: WATSON Camera gif
NASA's Mars Perseverance rover acquired these images using its SHERLOC WATSON camera, located on the turret at the end of the rover's robotic arm.
Images acquired on April 4, 2025 (Sol 1465) at the local mean solar time of 14:33:58 14:37:02.
Image Credit: NASA/JPL-Caltech
Assembled by Barley Culiner with GIMP
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Evidence of a microbial community associated with rock varnish at Yungay, Atacama Desert, Chile https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007JG000677
Life on the Edge: Microbes in Rock Varnish https://www.osti.gov/biblio/1570605
https://en.m.wikipedia.org/wiki/Cyanobacteria
Martian blueberries
https://blogbarley.blogspot.com/2023/05/cyanophyta.html
Cyanobacterial morphology https://blogbarley.blogspot.com/2023/10/blog-post_13.html