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Seismic Morphing of Regolith

Project description

Mapping the Moon’s shaken ground

When space rocks strike airless worlds such as the Moon, some portion of impact energy travels through the ground as seismic waves. This shaking can loosen regolith, altering its density and thermal properties. Recently disturbed regions may appear from orbit as thermal anomalies called lunar cold spots, but observations cannot directly show subsurface changes. Supported by the Marie Skłodowska-Curie Actions programme, the SEISMOR project will combine vacuum laboratory experiments with simulations of regolith shaking and seismic-wave propagation. It will determine how decompaction depends on gravity, material properties and shaking conditions. By connecting surface changes to seismic response, the project may help constrain the impacts that created lunar cold spots and improve understanding of how impacts reshape the Moon and other airless celestial bodies.

Objective

Surface shaking on airless worlds reorganizes regolith, producing “cold spots” around fresh lunar craters. Remote sensing alone cannot resolve how impact-induced seismic loading drives depth-dependent dilation. This project will establish a predictive, experimentally validated link from impact-driven seismic boundary conditions to depth-resolved bulk-density change, yielding the first forward cold spot formation-mechanism law and enabling future inversion to impact energy/angle and resource targeting. SEISMOR couples continuum wave-propagation models that set depth-dependent boundary conditions with a standardized, open-source DEM workflow and a focused vacuum benchtop validation campaign. The project generates a broadly sampled synthetic catalogue across realistic material and gravity regimes, then extracts an uncertainty-aware macroscopic relation via Bayesian filtering alongside a complementary tree-based model, validated against controlled vacuum experiments. Outcomes include an open-source analysis tool implementing the pipeline, a public synthetic dataset with clear metadata, and a concise ISRU policy brief on blast loading and surface interactions. In the near term, the framework will be applied to representative case studies to quantify uncertainty and test assumptions. By providing a transparent bridge from seismic boundary conditions to density change, SEISMOR delivers a vacuum-validated, gravity-scalable basis to interpret lunar cold spots, inform early-stage surface-science and mission-concept choices, and strengthen Europe’s leadership in planetary science.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

POLITECNICO DI MILANO
Net EU contribution
€ 209 483,28
Address
PIAZZA LEONARDO DA VINCI 32
20133 Milano
Italy
Region
Nord-Ovest Lombardia Milano
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Partners (1)