Operational Naturalness Paradox and the Webb Crater Sphere-Like Features - A consolidated, reproducibility-oriented audit of visual discovery, geometry, mineralogy, thermal and gravitational claims
Year: 2026
Type: preprint
Abstract: This technical report consolidates and audits a reported set of three approximately circular or sphere-like features in the Webb crater region of the Moon. The investigation began with a visual observation in a derived LROC WAC mosaic presented through the Gigamacro interface and was subsequently compared with LROC NAC/QuickMap imagery and Chandrayaan-2 TMC-2 imagery. The report evaluates the documentary and evidentiary chains supporting claims about geometry, triangular alignment, mineralogy, thermal behavior, gravity, topography, and possible technosignatures. The study applies an epistemically explicit framework that distinguishes documented observations, model-dependent inferences, and claims that are not reproducible from the audited materials. It audits reported feature diameters, center separations, coordinate usage, image provenance, colorimetric contrasts, M³ L2 subcube comparisons, thermal and gravitational interpretations, and the exploratory PNO/ONTI index. The analysis finds that the available record supports a candidate visual pattern and several reproducible regional image contrasts, but does not establish three-dimensional spheres, an independently demonstrated equilateral triangle, local ilmenite abundance, an individual thermal anomaly, a tens-of-metres gravity anomaly, a cavity, metallurgy, or artificial origin. A new native-data processing branch generated a real regional stereo digital elevation model from two LROC NAC EDR observations, M152485442RE and M1353746606LE. The products were converted with ISIS, initialized with SPICE, radiometrically calibrated, corrected for echo effects, converted to linear CSM camera models, correlated with the Ames Stereo Pipeline MGM workflow, and rasterized with point2dem. The resulting DEM covers the working target coordinate and has a nominal spacing of 2.112758 m per pixel, 93.315% valid pixels, and a regional elevation range of approximately −3125.94 to −2980.11 m in the product datum. However, the intersection-error field is approximately 30.06–32.93 m and the sampled median triangulation error is 30.8944 m. The DEM is therefore a genuine regional topographic product suitable for crater-floor context and controlled testing, but it is not yet sufficient to confirm or reject an individual feature with a reported diameter of approximately 22.73 m. The report concludes that the Webb features should remain classified as observational candidates requiring controlled reprocessing. Artificial origin is not confirmed. The recommended next steps are bundle adjustment with independent LOLA/QuickMap control, a third NAC observation if available, explicitly registered feature masks, local natural-relief models, propagated uncertainty, and blinded control-region tests.
Author: Balthazar da Silva, Isaías
Language: English
Subfield: Space and Planetary Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225466412