Mars Through Time International Conference

 

October 14-17, Paris, France

 

The allocated time (13' for regular talks, 20' for a few keynote talks,) does not include questions and discussions (at least 5' per talk are included on average)

 

Monday, October 13, 2025

 

Monday 18:00 - 20:00: Welcome reception at the top of the Zamansky tower at Sorbonne University (the tallest building in the area: great view over Paris...), Place Jussieu, a few meters from the Workshop venue.

 

Tuesday, October 14, 2025

 

Registration: 8:15 - 9:00

Tuesday: 9:00 - 10:30

Welcoming remarks 10'

 

Introductory Reviews: "Mars water through Time"

 

The Dynamic Habitability of Mars: Key Findings and Needed Measurements (keynote: 20')

Ehlmann, B. and R. Wordsworth

 

Hydrologic System and Cycle Throughout Mars History: A Combined System Science Approach (Hydrosphere, Atmosphere, Cryosphere, Lithosphere, Geologic History). (keynote: 20')

Head, J., R. Wordsworth and J. Fastook

 

The History of Water on Mars During The Hesperian and Amazonian (keynote: 20')

Jakosky B. M., N. R. Alsaeed, E. M. Cangi1, M. S. Chaffin, J. Deighan, M. E. Landis, M. T. Mellon and E. M. B. Thiemann.

Coffee Break: 10:30 - 11:00

Tuesday: 11:00 - 12:15

Early Mars Climate Modelling

 

Constraints on Hydrological Climates on Ancient Mars from Formation and Persistence of Crater Paleolakes (13')

Mischna, M., A. Soto and G. Stucky De Quay

 

3-D Global modelling of the early martian climate under a dense CO2+H2 atmosphere and for a wide range of surface water inventories (13')

Turbet, M. and F. Forget

 

Exploring Early Mars Climate and Habitability with 3D Generic PCM Simulations: Impacts of Ocean Heat Transport and Photochemistry (13')

Kuzucan, A., E. Bolmont, M. Turbet, M. Maurice, Y. Jaziri and S. Bhatnagar

 

Milankovitch Cycles and Climate - Fluvial Interactions on Early Mars! (13')

Kamada, A., T. Kuroda, T. Kodama, T. Yoshida, R. Greve, Y. Kasaba, N. Terada, and T. Usui

 

Lunch Break: 12:15 - 14:00

Tuesday: 14:00 - 15:30

Ancient Mars Climate with a Polar Ocean and Ice Sheet Dynamics (13')

Schmidt, F., M. J. Way, A. Quiquet, I. Aleinov and C. Dumas

 

Constraining Early Mars Climate Through Coupled Hydrological Modeling and Comparison with Geomorphological Evidence (13')

Gauvain A., F. Forget, M. Turbet and J.B. Clement

 

Not enough H2O2 to warm early Mars (13')

Maurice, M., F. Forget, E. Millour, Y. Luo, F. Lefevre, A. Stolzenbach, Y. Jaziri and A. S. Braude

 

Organic matter formation from formaldehyde on Mars through time (13')

Koyama, S., A. Kamada, T. Yoshida, N. Terada, Y. Furukawa, Y. Nakamura, Y. Ueno, T. Kuroda and A. C. Vandaele

 

Simulating Formaldehyde Production and Fluvial Transport on Early Mars using a Global Climate and River Model (13')

Kamada, A., S. Koyama, Y. Furukawa, T. Kuroda, T. Yoshida, T. Kodama, Nakamura Yuki, Y. Kasaba and N. Terada

Coffee Break: 15:30 - 16:00

Tuesday: 16:00 - 17:30

Sulfur's Decisive Role in Driving Early Mars Climate Evolution (13')

Metz C. O., C. Li and N. F. Wogan

 

Early Mars environment: New inputs from mineralogy and sedimentology

 

Lessons from Curiosity and Perseverance:

 

What do the >3.8 Ga rocks studied so far at Jezero crater tell us about the past climate of Mars? (keynote : 20')

Quantin-Nataf, C., Dehouck E., N. Mangold, L. Mandon, E. Clave, C. Royer, P. Beck, O. Forni, C. Bedford, L. Mayhew, E. Ravanis, F. Poule, J. Johnson, A. Cousin, R. Wiens, J. L. Simon and K. Stack-Morgan

 

What do the fluvio-lacustrine sedimentary records at Gale and Jezero craters tell us about the past climate of Mars? (keynote: 20')

Mangold N., G. Caravaca, S. Gupta, E. Dehouck, O. Gasnault, A. Cousin, W. Rapin, L. Le Deit, S. Le Mouelic, K. M. Stack, J. Grotzinger, R. M. E. Williams, E. Clave, L. Kah, C. Fedo, W. Dietrich, K. Siebach, N. Randazzo, J.F. Bell III and R.C. Wiens.

 

Mars through the clay-sulfate transition as recorded in Gale crater stratigraphy (13')

Rapin, W., G. Dromart, J. Schieber, B. Clark, L. Kah, D. Rubin, G. Caravaca, C. A. Mondro, S. Gupta, A. Roberts, N. Mangold, L. Edgar, R. Sheppard, M. Loche, E. Dehouck, P. Beck, Le S. Mouelic, E. Kite, B. Tutolo, A. Bryk, W. Dietrich, J. Frydenvang, P. Gasda, O. Gasnault and L. Nina

Free evening

 

Wednesday, October 15, 2025

 

Wednesday: 9:00 - 10:30

Early Mars environment: Inputs from Mineralogy and sedimentology (continued)

 

Learning from clays:

 

Deciphering Mars's Early Aqueous Environments: Ferromagnesian Clay Diversity across the Crustal Dichotomy (13')

Brossier, J., M-C De Sanctis, F. Altieri, A. Frigeri, M. Ferrari, S. De Angelis, E. Bruschini, A. Apuzzo, M. Rasmussen, and J. Trisic Ponce

 

Noachian Mars: Clay Continuity between Oxia Planum and Mawrth Vallis. (13')

Torres, I., J. Carter, C. Quantin-Nataf, M. Volat and D. Loizeau

 

Compositional Clay Stratigraphies as Indicators of Paleoclimate on Early Mars (13')

Horgan, B., A. Klidaras, A. Broz, S. Olson, R. Moore, T. Goudge and W. Farrand

 

Signatures of Weathering on Ancient Mars: A Global Spectral Database of Martian Compositional Clay Stratigraphies (13')

Klidaras, A., B. Horgan, S. Olson, W. H. Farrand, A. Broz, T. Goudge and C. Albright

 

Aluminum phyllosilicate and jarosite-alunite formation from probable volcanic ash deposits across Mars (13')

Baker, S. and B. Ehlmann

Coffee Break: 10:30 - 11:00

Wednesday: 11:00 - 12:30

More intriguing observations and scenarios:

 

Mineralogical evidence for Pre-Noachian and Noachian surface liquid water in the Black Beauty Martian meteorite and rover data (13')

Beyssac, O., V. Malarewicz, B. Zanda, R. Hewins, P. Beck and A. Cousin

 

Was Hellas Planitia a Noachian Sea? (13')

Carter, J., V. Ansan and N. Mangold

 

Hydrothermal systems on Martian crater rims: Type example at Ritchey crater and comparison to NW-Isidis crater rims (13')

Deahn, M., L. Zeng and B. Horgan

 

Manganese (Hydr)Oxides Record the Dynamic Evolution of a Million-Year Hesperian Ocean in Utopia Planitia, Mars (13')

Hou, H., H. Sun, X. Bai and L. Y. Li

 

Recent Aqueous Alteration Associated to Sedimentary Volcanism in Acidalia Planitia, Mars (13')

Pineau, M., J. Carter, A. Lagain, E. Ravier, N. Mangold, L. Le Deit, C. Quantin-Nataf and A. Zanella

Lunch Break: 12:30 - 14:00

Wednesday: 14:00 - 15:30

Interrogating the origin of Kasei Valles, from flow to form (13')

Grau Galofre, A., N. Mahoume, S. Carpy and G. Choblet

 

Mars Redox Through time:

 

Unlocking Early Mars Redox Conditions: Evidence from Planetary-Scale Iron Oxide Deposits (13')

Valantinas, A., J. Mustard, V. Chevrier, L. Ojha and S. Ranjan

 

The Evolution of Iron Redox on Mars: From Fe-rich Crust to Ferric Dust (13')

Zhao, Y-Y. S.

 

Climate Transition and Atmospheric Redox evolution of Early Mars Revealed by Surface Iron Mobility (13')

Liu, J. and J. Michalski

 

Escape, isotopes & the evolution of the Martian atmosphere

 

First detections of atmospheric sputtering: past and present (13')

Curry, S. M., T. Hara, F. Leblanc, J. G. Luhmann, R. Jolitz, R. Modolo

Coffee Break: 15:30 - 16:00

Wednesday: 16:00 - 17:15

CO2-N2-H2 Atmosphere and Transient Habitability on Ancient Mars Indicated by C, N, Ar, and H isotopes (keynote: 20')

Hu, R., Y. Yung and B. Ehlmann

 

Unraveling the Evolution of Mars' Atmosphere through Isotopic Measurements of Hydrogen, Oxygen, and Carbon with ACS on ExoMars TGO (13')

Alday, J., F. Montmessin, O. Korablev, A. Trokhimovskiy, A. Fedorova, K. Olsen and the ACS Science Team

 

Comparative Analysis of Tropospheric Water Isotope Distributions on Mars and Earth: Insights into Ice Cloud Microphysical Processes and Storm Dynamics (13')

Wang, D., F. Montmessin, C. Risi, G. Petzold, M. Vals, E. Gourion, S. Fan and L. Tian

Posters session: 17:30-20h

 

Thursday, October 16, 2025

 

Thursday: 9:00 - 10:30

Early Mars environment (continued)

 

Did Early Mars Self-Regulate as a Desert Planet? New Models Motivated by New Data from Mars Science Laboratory (keynote: 20')

Kite, E. S., B. M. Tutolo, M. L. Turner, H. B. Franz, D. G. Burtt, T. F. Bristow, W. W. Fischer, R. E. Milliken, A. A. Fraeman and D. Y. Zhou.

 

Mars "Recent" environments (Amazonian)

 

Recovering Mars' orbital elements beyond the horizon of predictability through the analysis of the Earth's sedimentary records (keynote: 20')

Laskar, J.

 

The Challenge of Modelling the Recent Evolution of the Martian Environment at other Obliquities and Orbits (13')

Forget F., J-B Clement, L. Lange, Y. Luo, E. Millour, J. Naar, T. Pierron, A. Spiga, E. Vos.

 

Modelling very recent ice ages on Mars with the Planetary Climate Model (13')

Millour, E., J. Naar, F. Forget, E. Vos, L. Lange and J-B. Clement

Coffee Break: 10:30 - 11:00

Thursday: 11:00 - 12:30

Stratified ice and dust flow dynamics of the NPLD, a possible explanation for its lack of observable flow (13')

Grau Galofre, A. and I. Smith

 

A Planetary Evolution Model for simulating Mars' past environments: preliminary applications to the Polar Layered Deposits (13')

Clement, J-B., F. Forget, E. Vos, L. Lucas and E. Millour

 

A 120,000-Year Simulation of Mars Undergoing an Obliquity Cycle up to 45 degrees and back (13')

Vos, E., F. Forget, J-B. Clement, L. Lange and E. Millour

 

Increased Hydrogen Escape from Mars Atmosphere during Periods of High Obliquity (13')

Gilli, G., F. Gonzalez-Galindo, J-Y. Chaufray, E. Millour, F. Forget, F. Montmessin, F. Lefevre, J. Naar, Y. Luo, M. Vals, L. Rossi, M. A. Lopez-Valverde and A. Brines.

 

Seasonal and Perennial Carbon Dioxide Deposits on Mars in the Early Amazonian (13')

Kreslavsky, M. A.

Lunch Break: 12:30 - 14:00

Thursday: 14:00 - 15:30

CO2 Cycle Dampened by the Radiative Effect of Water Ice Clouds in the Late Amazonian: Implications for the Formation of Gullies (13')

Lange, L., F. Forget, J. Naar, E. Vos, J.-B. Clement, E. Millour and D. Elad

 

Cyroclastic flows on Mars - granular flows driven by the sublimation of ices and their implications for Martian surface processes in the Late Amazonian (13')

Roelofs L., S. J. Conway and T. de Haas

 

A Survey in Space and Time of Dust Lofted by CO2-sublimation-triggered Mass Wasting on Martian Sand Dunes (13')

Kefa, M., S. Conway and L. Roelofs

 

Steep-fronted ice-rich deposits in the Alba Mons region (Mars): Morphology, distribution, and potential terrestrial analogues (13')

Le Becq, N., L. Scordia, S. Conway, A. Grau Galofre, C. Morino, V. Bickel, S. Byrne and N. Mangold

 

Polythermal Glacial Physiochemical Alteration: Implications for the Compositional Record of Past Mars Climate (13')

Rutledge, A. M., C. L. De Anda, B. H. N. Horgan, J. R. Havig, I. Marrs and M. R. Salvatore.

Coffee Break: 15:30 - 16:00

Thursday: 16:00 - 17:30

Mars Reconnaissance Orbiter Mars Climate Sounder Shallow Water Ice and Regolith Overburden Mapping in the Northern Hemisphere (13')

Piqueux, S., A. Kleinboehl, D. Kass, M. Slipski, P. Hayne and J. Schofield

 

The Martian Mid-Latitude Subsurface Ice is the Remnant of a Past Ice Sheet (13')

Vos E., F. Forget, L. Lange, J. Naar, J-B. Clement and E. Millour

 

Global Simulation of Shallow Subsurface Water Sources on Mars with Adsorption Effects (13')

Kobayashi, M., A. Kamada, T. Kuroda, H. Kurokawa, S. Aoki, H. Nakagawa and N. Terada.

 

Oscillations in Martian Atmospheric Composition and Oxidizing Capacity Driven by Obliquity Variations (keynote: 20')

Luo, Y., F. Lefevre and F. Forget

Conference Dinner

 

Friday, October 17, 2025

 

Friday: 9:00 - 10:30

Mars "Recent" environments (Amazonian) (Continued)

 

Liquid water and possible habitats recently on Mars.

 

A case for possible late glaciofluvial activity on Eastern Hellas basin: Valley morphologies and glacial signatures (13')

Blanc, E., A. Grau Galofre, N. Mangold, S. Berquez and N. Le Becq

 

On the Possibility of Melting Water Ice to Initiate/Promote Gully Activity during the Recent Past of Mars (13')

Lange, L. and F. Forget

 

Laboratory Sediment Flow Experiments Suggest Observable Geomorphic Indicators of Mars Paleopressure (13')

Adler J., F. Rivera-Hernandez, S. Thompson and P. Broz

 

Modeling Martian Mudflows: Morphologic Evolution and Environmental Sensitivity (13')

Frizzell, K. and J. Adler

 

Liquid Vein Networks as Habitats in Martian & Antarctic Ice-cemented Ground (13')

Sizemore, H., M. Mellon, A. Rempel, C. McKay, J. Heldmann, C. Stoker and M. Perry

Coffee Break: 10:30 - 11:00

Friday: 11:00 - 12:30

The present and past dust cycle and aeolian transport

 

The challenge of modeling present and past dust cycles: An Offline Model for long-term Martian Dust Storm Simulations (13')

Pierron, T, F. Forget and T. Bertrand

 

Atmospheric and Terrain Factors Influencing Martian Dust Devils (13')

Betton, Q., S. J. Conway, V. T. Bickel, L. K. Fenton, M. R. Patel, H. C. Carson, A. Blouin, J. Crevier, E. Blanc, N. Nguyen, J. A. Holmes, B. Jackson and L. Roelofs

 

Global surface wind patterns on Mars recorded by transverse aeolian ridges (13')

Wei, Z., Y. Wang, C. Sun, J. Cai and S. Fan

 

Transverse Aeolian Ridges at the Beagle 2 Landing Site (13')

Paton, M., P. Grindrod, T. Bertrand, J. Davis, A-M. Harri, H. Savijarvi and C. Segonne

 

Oxidation of Halite (NaCl) during Global Dust Storms on Mars (13')

Salgado, W. P., E. Hirai and Y. Sekine

Lunch Break: 12:30 - 14:00

Friday: 14:00 - 15:30

More lessons from ESA orbiters

ESA's Mars Orbiters: contributions to Mars atmosphere & climate science (keynote: 20')

Wilson, C.

 

Recent observations of the Martian climate and trace gases with ExoMars Trace Gas Orbiter (13')

Olsen, K., B. S. Gregory, F. Montmessin, O. I. Korablev, A. A. Fedorova, A. Trokhimovskiy, J. Alday and the ACS Science Team

 

An hypothetical future : Terraforming Mars

 

Mars Climate Warming Mechanisms and Suitability for Life, Past and Future (13')

Kite, E., A. Kling, A. S. Braude, M. A. Mischna and F. Sharipov

 

Modelling the conceptual feasibility and impact of future artificial warming of Mars using manufactured aerosols (13')

Braude, A., E. S. Kite, M. I Richardson, S. Ansari, H. Mohseni, B. Fan, R. Ramirez, M. A. Mischna, M. H. Hecht, L. J. Steele and F. Sharipov

 

Discussions about Terraforming Mars.

Coffee Break: 15:30 - 16:00

Friday: 16:00 - 17:30

Closing session: "Major outstanding questions concerning Mars Through Time and future observations to plan"

-      Round table with: (~4-6 early career scientists to be determined)

-      Debate with the audience

 

Final remarks

 

Friday, 17:30: End of the conference

 

Posters

 

-      Posters will be up all week

-      A dedicated poster session is planned on Wednesday, 17;30 - 20:00

 

Early Mars (Noachian & Hesperian) posters

 

Cyclic alternations of clay and sulfate beds in the Equatorial Layered Deposits of Meridiani Planum, Mars: origin, development, and climatic implications

Baschetti, B., A. Tullo, M. Massironi, C. Carli, F. Altieri, A. Breda, F. Tateo, R. Pozzobon and M. Baroni

 

Orbital stratigraphic analysis of the Eberswalde sedimentary fan: comarison with Jezero delta, Mars

Carlot, N., F. Salese, N. Mangold, G. Ori Gian, F. Zennaro, R. Maitan, M. Ghinassi and I. Martini

 

Origin of Late Noachian-Early Hesperian Valley Networks on Mars: Insights from an Integrated Multi-Analysis Technique Approach

Karpenko, K., J. Fastook, J. Head, A. Howard, C. Fassett, J. Dickson, K. Scanlon and B. Boatwright

 

Ausonia Cavus and Environs - A geologic record of early Mars climate conditions

Hamilton, J.

 

Warm and wet conditions on early Mars achieved by a return of hydrogen from the core

Hirai, T., Y. Sekine, S. Kadoya, R. Wordsworth and K. Hirose

 

Modelling of Ground Water Transport on Ancient Mars

Chaffard, F., A. Kamada, T. Kuroda and N. Terada

 

Modeling the hydrological evolution of Jezero's crater lake and its deltaic deposit

Villette, J., N. Mangold, E. Kite, S. Conway and L. Le Deit

 

Future in situ investigation of Noachian Fe/Mg phyllosilicates, fluvial and deltaic deposits as part of the ExoMars rover's science sampling strategy: implications for early Martian climates and aqueous environments

Ligeza, G., E. Sefton-Nash and J. L. Vago

 

"Recent Mars" (Amazonian) posters

 

Ice-Rich Crater Fills in the Martian Mid-Latitudes: Morphology, Distribution, and Implications for Mid-Latitude Ice Stability

Bijoy, H., T. Ruj, J. Kameda, and T. Sako

 

Crater-Associated Irregular Cellular Structures on Mars: A New marker for the detection and the study of Debris-Covered Glaciers.

Scordia L., S. J. Conway and A. Johnsson

 

Present-day Mars posters

 

About atmospheric dust:

 

More Than Two Mars Years of Atmospheric Dust Characterization from Jezero Crater using Mars 2020 Mastcam-Z Direct Imaging of the Sun, Sky, and Calibration Targets

Bell III, J. F., M. Lemmon and M. J. Wolff

 

Simulation of Dust Weather in the Zhurong Traverse Area Using Mul-tiscale Numerical Models

Wang, C., X. Long, X. Tong, Z. Li, X. Huan, Y. Feng, X. Xu and Y. Xu

 

The Impact of Local Dust Storms on Meteorological Conditions: Fully Interactive Dust - Sensitivity Experiments with the MarsWRF Model

Xiao, J. and K-C. Chow

 

Rapid decay of Martian Global Dust Storms driven by small-scale deposition processes in the lower planetary boundary layer

Li, L., C. Sun, S. Fan, C. Zhao, Y. Zhao, T. Li and C. E. Newman

 

History of Martian dust storm observations: Possible links between ancient Chinese records and Martian dust storms

Fan, K., M. Fraenz, Y. Wei,

 

Water cycle and clouds;

 

Diurnal Variations in the Vertical Distribution of Water Ice in the Martian Aphelion Cloud Belt

Kahre, M., M. J. Wolff and R. A. Urata

 

Water transport driven by the barometric pumping on Mars

Kobayashi Mirai, Y. Luo, F. Forget, T. Kuroda and N. Terada

 

Implementation of the water ice cloud microphysics interactive with the dust cycle into DRAMATIC MGCM

Kuroda,T., M. Kobayashi, A. Kamada, H. Karyu, R. Sato and N. Sugimoto

 

Characterization of clouds from PFS observations and MARCI images in the Tharsis region during the dusty season

Wolkenberg, P., J. Hernandez-Bernal and M. Giuranna

 

Mars Atmosphere dynamics

 

Turbulence of Non-orographic Gravity Waves in Mars Planetary Climate Model

Liu, J., E. Millour, F. Forget, F. Lott and J-Y. Chaufray

 

Thermal Tides in the Martian Lower Atmosphere observed by EMM/EMIRS

Sun, C., S. Fan, F. Forget, S. Guerlet, E. Millour, M. Smith, S. Atwood, T. Li, C. Yang, L. Li, K. Badri, H. Matroushi, C. Edwards and J. Deighan

 

Season-dependent weather predictability barrier phenomenon in the Martian atmosphere

Zhuang, Y, W. Duan, and L. Dong

 

Climatology of the Residual Mean Circulation of the Martian Atmosphere and Contributions of Resolved and Unresolved Waves Based on Reanalysis Data

Asumi, A., K. Sato, M. Kohma, and Y-Y. Hayashi

 

Mars Climate models in development:

 

Coupled Simulation of the Water and Dust Cycles on Mars

Chow, K. K. C.

 

Improved Treatment of Martian Polar Processes in ROCKE-3D GCM: the Exotic Ices Model

Aleinov I., J. P. Perlwitz, O. Clarkson, M. J. Way, S. D. Guzewich, K. Tsigaridis and E. T. Wolf

 

The Present Day Atmospheric Dust Cycle and Dust Radiative Effect on Mars in NASA GISS ROCKE-3D

Perlwitz, J. P., I. Aleinov, K. Tsigaridis, S. D. Guzewich, D. M. Glaser, O. Clarkson, M. J.Way, E. T. Wolf and R. L. Miller.

 

Other topics;

 

Nighttime Thermal Discrepancies Between EMM/EMIRS and Mars PCM during MY 36-37

Atri, D. and P. Krishna

 

Variations of Martian Proton Aurora in Different Timescales

Wu, J., F. He, Y. Zhou, J. Gao, L. Yan, Z. Rong and Y. Wei

 

Modelling the Influence of Oxidative Chemistry on Trace Gases in the Present-Day Atmosphere of Mars

Gregory B. S., K. S. Olsen, E. Millour, M. A. J. Brown, M. R. Patel, K. Rajendran and P. M. Streeter

 

Endogenous Activity at Cerberus Fossae: A Quantitative Evaluation.

Lange, L., S. Piqueux, C. Edwards, C. Saluski, K. Sorli, and P. Hayne

 

Photometric Properties of Soils at the Zhurong Landing Area

Zhou, X., Y. Yang, X. Wu, Y. Liu, W. Wan, J. Liu and Y. Zou

 

MIRS: The infrared spectro-imager aboard the Martian Moon eXploration mis-sion to study the evolution of Phobos, Deimos and Mars.

Gautier, T., Y. Leseigneur, A. Barucci, P. Bernardi, J-M. Rees, S. Fornasier, F. Merlin, A. Wargnier, G. Poggiali, G. David, A. Doressoundiram, C. Donny, V. Piou, E. Sawyer, T. Iwata, H. Nakagawa, T. Nakamura, and the MIRS team

 

A study on CO2 supersaturation in the Martian southern polar night using MGS radio occultation profiles rederived with MCS temperature climatology

Noguchi, K., N., A. Kleinbohl and S. Piqueux