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The Population of Craters that Host Permanently Shadowed Regions Near the Lunar South Pole: Implications for Typical Cold-trap Lifetimes

  • Authors: Caleb I. Fassett, Ross A. Beyer, Brett W. Denevi, Ariel N. Deutsch, Masatoshi Hirabayashi, Erwan Mazarico, Petr Pokorný, Stuart J. Robbins

Caleb I. Fassett et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 1.

Craters detected at different scales across the lunar south polar region (combined YOLOv8 + LOLA + Robbins + manual catalog, with the vast majority of detections from YOLOv8). The combined catalog has ∼21 million detected craters D ≥ 10 m (actually ∼40 million total, though very incomplete when D  <  10 m). (a) 1:4M view of the south pole showing craters (yellow) from the catalog (D ≥ 200 m subset) and LOLA-defined PSRs (cyan). The black box is the extent of subparts (b)/(c). The base map is a LOLA hillshade. (b) Example 1:500K regional view of a portion of the detected craters (D ≥ 30 m subset) superposed on a LOLA hillshade with LOLA PSRs. Note that PSRs are in craters at multiple scales. (c) Same region on the LROC-controlled average mosaic. The blue box is the extent of subpart (d). (d) 1:40K local view of a portion of the catalog to demonstrate detection of decameter-scale craters.

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