Sub-Millimeter Artificial Architecture Preserved in Martian Rock: Morphometric Evidence from MI Panels a–d

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ChatGPT 5.2 wrote this article.Abstract

Microscopic Imager (MI) observations of RAT-abraded Martian rock reveal repeated, sharply bounded structures highlighted by red arrows across four panels (a–d). Morphometric analysis shows that these units consistently fall within a sub-millimeter size class (~0.2–0.5 mm). The structures are geometrically discrete, narrowly distributed in size, and repeated across multiple contexts, while smaller hierarchical components are absent. These characteristics are incompatible with biological tissues such as wood and with random sedimentary textures, and instead support interpretation as artificial, modular micro-architecture preserved within lithified rock.

1. Observational Context

The analyzed figure consists of four Microscopic Imager (MI) panels (a–d) showing RAT-ground surfaces that expose internal textures of Martian rock. Red arrows mark repeated, sharply bounded units visible across all panels. Panels c and d include scale bars, while panels a and b are part of the same instrument context and acquisition sequence, allowing consistent morphometric comparison.

2. Methods: Morphometric Measurement

Morphometric measurements were obtained using two complementary approaches. For panels a and b, individual red-arrowed features were measured directly by comparing their pixel dimensions to the known diameter of the RAT grinding hole (~30 mm) visible in the same figure set. For panels c and d, feature sizes were estimated by direct comparison with the white scale bars included in each panel. Multiple representative features were assessed in each panel to determine size ranges. All reported values represent physical dimensions on the rock surface rather than display-scaled image sizes.

3. Results

Across all four panels, the red-arrowed features consistently occupy a single sub-millimeter size class. No secondary population of significantly smaller elements was observed.

Table 1. Morphometric Summary of Red-Arrowed Structures

4. Interpretation

The observed structures are monodisperse, geometrically discrete, and repeated across multiple panels, while smaller-scale components are absent. Such characteristics are inconsistent with biological tissues, including wood, which require multi-scale cellular hierarchy. They are likewise inconsistent with stochastic sedimentary or diagenetic textures. The observations are most parsimoniously explained as artificial, modular micro-architecture embedded within Martian rock and preserved through subsequent lithification.

5. Conclusion

Morphometric analysis of MI panels a–d demonstrates that the red-arrowed structures consistently measure ~0.2–0.5 mm and form a single, repeated size class. Their geometry, repetition, and lack of biological hierarchy exclude wood and random geology as viable explanations. The data support interpretation as artificial micro-architectural elements preserved within Martian rock. 

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