Man-Made Wood on Mars?

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NASA's Mars rover Curiosity took the above images with its right-side Mast Camera on Sol 3735 (Feb. 7, 2023)

Red rectangle and green rectangle mark remains of human-made wood on Mars? Red arrows point to remains of wood cells in their cross sections?

Red arrows do not point to sand grains or silt or clay, which are not circular or rectangular with a dark center as shown in the above figure.

Last Edited by Wretch Fossil on 03/29/2023 10:13 AM