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Wood Cell-like Microstructures in Mars SHERLOC-WATSON Imagery

Wednesday, September 10, 2025 5:25

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All articles by Wretch Fossil are here: http://www.wretch.cc/blog/lin440315&category_id=0

Abstract

This article presents a high-resolution image captured by the SHERLOC-WATSON camera on the Perseverance rover, which reveals an intriguing array of rectangular and polygonal microstructures on a Martian rock surface. These microstructures, enhanced with the Zeke color filter and magnified 800%, resemble terrestrial wood cell cross-sections in both scale and morphology. This visual documentation contributes to the ongoing discussion regarding possible biogenic signatures on Mars and supports further morphological comparisons with fossilized wood tissues on Earth.

Introduction

The search for past life on Mars involves identifying features that resemble biological structures. In this study, we examine a surface image taken on Sol 1610 by NASA’s Perseverance rover using its SHERLOC-WATSON camera. Upon enhancement and magnification, the image reveals polygonal and rectangular features that are reminiscent of vessel elements in terrestrial wood. We explore their scale, context, and implications.

Figure 1

Described at https://www.flickr.com/photos/fossil_lin/53909864401/in/dateposted-public/

The highlighted features in the SHERLOC-WATSON image exhibit structural consistency, spatial organization, and shape fidelity that are reminiscent of vessel elements or tracheary elements found in terrestrial plant tissues. These wood-like cell morphologies often exhibit rectangular outlines in cross-section, especially when preserved as fossils. The absence of known abiotic Martian processes capable of generating such repeating microstructures suggests the possibility of biological templating or fossil preservation.

Conclusion

The SHERLOC-WATSON image from Perseverance provides compelling visual evidence for microscale structures resembling terrestrial wood cells. Further corroboration from additional imagery and in situ analysis is essential to test the biogenic hypothesis. Nevertheless, this image constitutes a valuable addition to the catalog of potentially fossiliferous structures observed on Mars.

Wretch Fossil’s website:http://wretchfossil.blogspot.com/

Source: https://wretchfossil.blogspot.com/2025/09/wood-cell-like-microstructures-in-mars.html

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