Project description
Listening to planetary echoes
The deep interiors of Earth, Mars, and the Moon hold the keys to understanding planetary evolution. While Earth remains active, Mars and the Moon preserve ancient history, but their internal structures remain largely mysterious. Traditional seismology struggles on these bodies because heterogeneous interiors scatter waves, creating prolonged ‘echoes’ that obscure data. Supported by the Marie Sklodowska-Curie Actions programme, the SeisEchoPlanets project transforms these seismic echoes from noise into signals. By conducting a comparative analysis of seismic codas across these three bodies, the research extracts critical data on crustal thickness and core size. This approach prepares the scientific community for upcoming missions to the Moon and icy moons. SeisEchoPlanets marks a new era in planetary seismology.
Objective
The deep interiors of planets hold clues to fundamental questions in planetary science: How do planets evolve? Why do some remain geologically active while others fall silent? Earth, Mars, and the Moon, the three neighboring bodies, offer a natural laboratory for addressing these questions. Earth’s convecting core sustains a magnetic field, while Mars has lost its shield and the Moon has been inactive for billions of years. Yet, unlike Earth, Mars and the Moon preserve ancient records of planetary history due to the absence of plate tectonics. Comparing their interiors thus offers a unique view into the diversity of planetary evolution and the conditions controlling geological longevity.
Seismology is the most powerful tool for probing planetary interiors, but for Mars and the Moon our knowledge remains fragmentary. Despite seismic data from InSight and Apollo, key parameters such as crustal thickness and core size remain uncertain.
This is largely due to strong seismic scattering in their heterogeneous interiors. Scattered waves obscure primary phases much like echoes blur a voice, producing prolonged codas rather than sharp arrivals as on Earth. SeisEchoPlanets (from “seismic echoes” and “planets”) captures the central idea: just as sound reverberates in a hall, seismic waves can reverberate within a planet’s interior when scattered repeatedly, carrying rich information about its structure and evolution. This project treats such echoes not as noise, but as signals that encode the scattering properties and their temporal changes. I will conduct a comparative analysis of seismic codas from Earth, Mars, and the Moon, extracting parameters such as rise time, decay time, and attenuation using modeling and envelope-fitting tools already in my toolkit. The results will form the basis for interpreting data from upcoming missions, including FSS/Chang’E-7, Dragonfly, and Europa Seismic Package, advancing a new era of planetary seismology in echo-dominated environments.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- humanities history and archaeology history
- natural sciences physical sciences astronomy planetary sciences planets
- natural sciences earth and related environmental sciences geology seismology
- natural sciences physical sciences astronomy planetary sciences natural satellites
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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(opens in new window) HORIZON-MSCA-2025-PF
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75238 Paris
France
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