Origins 2026 - Conference of ISSOL and IAU Astrobiology Commission

8:00 - 10:00 (2h)

Registration and Coffee

10:00 - 10:30 (30min)

Welcome and Opening Session

Amphi Farabeuf

Conference Chairs

10:30 - 11:00 (30min)

Formation and evolution of Earth and planetary systems

Amphi Farabeuf

Keynote - Chair M. Saitta

› Is Earth Habitability Due to the Presence of Jupiter and Saturn? - Alessandro Morbidelli, Collège de France, Observatoire de la Côte d'Azur 10:30-11:00 (30min)

11:00 - 11:30 (30min)

Computing, theory and AI-driven frontiers in Astrobiology

Amphi Farabeuf

Keynote - Chair M. Saitta

› Examples of Computational Astrobiology - Rahm Martin, Chalmers University of Technology [Gothenburg, Sweden] 11:00-11:30 (30min)

11:30 - 12:00 (30min)

Turning points in life evolution

Amphi Farabeuf

Keynote - Chair M. Saitta

› The Nature of LUCA, and the Timeline of Metabolic Evolution - Edmund Moody, Universitat de Barcelona 11:30-12:00 (30min)

12:00 - 13:30 (1h30)

Lunch

13:30 - 15:30 (2h)

Formation and evolution of Earth and planetary systems

Amphi Farabeuf

Chair N. Haghighipour

› Sulphur chemistry in the envelope of two Class 0 objects - Patricia Fernández-Ruiz, Centro de Astrobiologia 13:30-13:45 (15min)

› First constraints on elemental abundances in planet-forming regions of disks - Pacôme Estève, Institut d'astrophysique spatiale 13:45-14:00 (15min)

› Radio emission mechanisms from protoplanet PDS70c - Simon Casassus, Astronomía, U. de Chile 14:00-14:15 (15min)

› The Evolution of Carbon Carriers During Protoplanetary Disk Formation and Evolution - Fred Ciesla, University of Chicago 14:15-14:30 (15min)

› Evaporation–condensation cycling at the silicate sublimation front: a kinetic origin for chondritic materials - sebastien charnoz, IPGP 14:30-14:45 (15min)

› Preaccretionary origin of clay minerals in CI chondritic objects? Insights from the Orgueil clay mineralogy and iron oxidation state - Jean-Christophe Viennet, Cosmochimie [IMPMC] 14:45-15:00 (15min)

› Large-scale hydrogen reactions with magma oceans change the atmosphere of exoplanets - Razvan Caracas, Institut de Physique du Globe de Paris 15:00-15:15 (15min)

› Simulating Chemical Reactions in Impact-generated Vapor Plumes on the Early Earth: Implications for Prebiotic Organic Synthesis - Yoko Ochiai, Earth-Life Science Institute [Tokyo] 15:15-15:30 (15min)

13:30 - 15:30 (2h)

Computing, theory and AI-driven frontiers in Astrobiology

Amphi Pasquier

Chair M. Saitta

› Selection Before Replication: Stability-Driven Assembly as a Solution to the Prebiotic Search Problem - Dan Adler, Independent Researcher 13:30-13:45 (15min)

› Preservation of Functional Information Under Ambiguous Genetic Codes - Celia Blanco, Centro de Astrobiología (CSIC-INTA) 13:45-14:00 (15min)

› When the Study of the Origins of Life Meets AI, or How Deep Learning Approaches are Transforming the Study of Reactivity at the Molecular Level - Guillaume Stirnemann, PASTEUR, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris 14:00-14:15 (15min)

› Adenine Formation in Prebiotic Conditions from Ab Initio Machine Learning Calculations - Stefano Ferrero, Chimie Physique et Chimie du Vivant 14:15-14:30 (15min)

› From Meteoritic Schreibersite to Bioavailable Phosphorus: Periodic DFT Insights into Corrosion and Phosphorylation - Piero Ugliengo, Dipartimento di Chimica and NIS 14:30-14:45 (15min)

› A Mechanistic Model of Protocell Formation Reproduces Key Morphological Transitions - Roland Zimm, Dublin City University [Dublin] 14:45-15:00 (15min)

› Agent-Based Modelling of Microbialite Formation Through Sedimentation and Precipitation Dynamics - Niall Rodgers, UK Centre for Astrobiology, The University of Edinburgh 15:00-15:15 (15min)

› Uncovering Organic Geochemical Evidence for Life and Photosynthesis in Archean Rocks via Pyrolysis–GC–MS and Supervised Machine Learning - Michael Wong, Carnegie Institution of Washington 15:15-15:30 (15min)

15:30 - 16:00 (30min)

Coffee break

16:00 - 17:00 (1h)

Turning points in life evolution

Amphi Pasquier

Chair P. Pavlinova

› Cellular Paleobiology Sheds Light on Major Turning Points in Life Evolution - Emmanuelle Javaux, Early Life Traces & Evolution-Astrobiology, Université de Liège 16:00-16:15 (15min)

› Phylogeny of Reverse Gyrase Domains Supports a Non-Hyperthermophilic LUCA - Antoine Corne, University of Bristol 16:15-16:30 (15min)

› The Ecological Context of Eukaryogenesis: Lessons from an Early Proterozoic Analog - Purificacion Lopez-Garcia, Ecologie Société Evolution 16:30-16:45 (15min)

› Phylogenetic Correlation Between the Type IV Secretion System and HIP1 Suggest an Adaptation for Horizontal Gene Transfer Conserved at the Phylum Level - Delaye Luis, Departamento de Ingeniería Genética, Unidad Irapuato 16:45-17:00 (15min)

16:00 - 17:30 (1h30)

Formation and evolution of Earth and planetary systems

Amphi Farabeuf

Chair A. Morbidelli

› Building Habitable Worlds: A First-Principles Approach - Nader Haghighipour, Institute for Astronomy, University of Hawaii 16:00-16:15 (15min)

› Shaping the Habitability of planets with N-body simulations - Francesco Maria Flammini Dotti, New York University [Abu Dhabi] 16:15-16:30 (15min)

› A novel pathway for water delivery to terrestrial planets and exoplanets - Quentin Kral, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics 16:30-16:45 (15min)

› Early Hydration of Mars: Mineralogical Evidence for Surface Liquid Water at the Dawn of Planetary Formation - Olivier Beyssac, Institut de minéralogie, de physique des matériaux et de cosmochimie 16:45-17:00 (15min)

› Overview of the Mars2020/Perseverance mission at Jezero crater, Mars - Agnès Cousin, Institut de recherche en astrophysique et planétologie 17:00-17:15 (15min)

› Evolution of the Earth's Atmosphere as Recorded on the Moon - Jared Landry, Earth-Life Science Institute [Tokyo] 17:15-17:30 (15min)

17:00 - 17:30 (30min)

Prebiotic functions and protocells

Amphi Pasquier

Chair P. Pavlinova

› Nonenzymatic Genetic Information Transfer from Acyclic Artificial Nucleic Acid L-aTNA to DNA: Toward a Pre-RNA World - Tomonari Kazuno, Earth-Life Science Institute [Tokyo], Saitama University 17:00-17:15 (15min)

› Chemical Replication and Transcription of L-Threonine-Derived Artificial Nucleic Acids for the Pre-RNA World - Hikari Okita, Laboratory for Biomaterials and Bioengineering, Institute of Integrated Research, Institute of Science Tokyo 17:15-17:30 (15min)

17:30 - 19:30 (2h)

Formation and evolution of Earth and planetary systems

Cloitre

Poster Session

› Planetesimal Formation by Gravitational Collapse - Nathan Magnan, Joseph Louis LAGRANGE 17:30-19:30 (2h)

› Life Emergence and Evolution on Earth Driven by Solar Hydrologic Cycle - Xuguang Leng, freelance 17:30-19:30 (2h)

› Redox Sensitivity of the Surface Conditions and Climate State of the Hadean Earth - Emeline Decocq, University of Groningen 17:30-19:30 (2h)

› Experimental Study of Amorphous Mg–Si–Al Gel Evolution Under Vapor-Phase Conditions - Öykü Ataytür, Muséum national d'Histoire naturelle 17:30-19:30 (2h)

› Micrometeorite Collection in the Stratosphere (MEDOR+) - Cécile Engrand, Orsay, France 17:30-19:30 (2h)

› Modelling Long-Term Interior Evolution of Rocky Planets Coupled to Volatile Outgassing to the Atmosphere - Paul Tackley, Department of Earth Sciences, ETH Zurich 17:30-19:30 (2h)

17:30 - 19:30 (2h)

Computing, theory and AI-driven frontiers in Astrobiology

Cloitre

Poster Session

› From Space to Soil: BLSS-Driven Innovations for Resilient Earth Food Systems - Catherine Alex, University of Warsaw 17:30-19:30 (2h)

› Magnetic Circular Dichroism for Specific Recognition of Phosphorylated α-Alanine: Theoretical Calculations and Molecular Mechanisms - Hua Zhao, Institute of Drug Discovery Technology, Qian Xuesen Collaborate Research Center of Astrochemistry and Space Life Sciences, Ningbo University 17:30-19:30 (2h)

› Assessing the Plaubility of Autocatalyic Processes With Generative Models - Philippe Nghe, Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris 17:30-19:30 (2h)

› Piezoelectric Asymmetry in Alanine Crystals as a Prebiotic Driver for Homochirality and Autocatalysis - Bryan Martínez-Pastor, Instituto de Ciencias Nucleares [Mexico] 17:30-19:30 (2h)

› Chemical complexification under shock: the case of glycine - Razvan Caracas, Institut de Physique du Globe de Paris 17:30-19:30 (2h)

› Emergence of Laminations in Stromatolites: Insights from Agent-Based Modelling - Laurane Fogret, Naturalis Biodiversity Center 17:30-19:30 (2h)

› Simulating Chemical Reaction Networks on Icy Moons - Diego Duenas Parapar, Department of Chemistry, Howard University 17:30-19:30 (2h)

› Quantum Chemical Calculations of Non-Enzymatic Degradation of RNA Catalyzed by a Single Water Molecule - Ayato Mizuno, Grad. Sch. Pharm., Meijo Univ., Aichi, Japan 17:30-19:30 (2h)

› Studying the Astrochemistry of Nitrogenous Bases with Quantum Chemistry - Alan Hidalgo Aranda, Instituto de Ciencias Nucleares, UNAM 17:30-19:30 (2h)

› Simulating Prebiotic Chemistry Using Ab Inito Reaction Networks - Tamara Buja, University of Cambridge 17:30-19:30 (2h)

› Knowledge Distillation and Fine-Tuning of Large Language Models for the Extraction of Prebiotic Chemistry Reactions: PreBioChem-DB - Tiziana Castrignanò, Department of Ecological and Biological Sciences 17:30-19:30 (2h)

› Disequilibrium chemistry in exoplanet's atmospheres - Cyril Markovitch, Astrophysique Interprétation Modélisation 17:30-19:30 (2h)

17:30 - 19:30 (2h)

Turning points in life evolution

Cloitre

Poster Session

› Competence in Evolutionary Dynamics - John Medina Diaz, Universidad Nacional Mayor de San Marcos 17:30-19:30 (2h)

› Quadruplex World: Origin of the Genetic Apparatus - Besik Kankia, Besik Kankia 17:30-19:30 (2h)

› An Expanded Genomic Sampling of Deep-Branching Cyanobacterial Lineages Supports a Close Relationship Between Gloeomargaritales and the Ancestor of Chloroplasts - Benjy Sedano-Herrera, UMR 8079 17:30-19:30 (2h)

› Selection Experiments to Explore the Origin of Collective Propagation - Maria Kalambokidis, Wisconsin Institute for Discovery 17:30-19:30 (2h)

› Oxygen as an Evolutionary Filter: Pangenomics of NCLDVs Reveals an Oxygen Dependent, Host Derived Core - Jose Alberto Campillo-Balderas, Universidad Nacional Autónoma de México 17:30-19:30 (2h)

› Effects of Gamma and Electron Radiation on the Structural Integrity of Biomarkers on Subsurface Ices on Europa and Enceladus - Miguel Santos, Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa 17:30-19:30 (2h)

› Mapping the Prebiotic Frontier: Application of SHAPE-MaP to the Structural Analysis of Early RNA Catalysts - Cécile Lainé, Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris 17:30-19:30 (2h)

› Bridging Prebiotic Chemistry and Engineered Systems for CO₂ Reduction - Dhanalakshmi Vadivel, Università degli Studi di Pavia 17:30-19:30 (2h)

17:30 - 19:30 (2h)

Prebiotic functions and protocells

Cloitre

Poster Session

› Natural Selection in RNA-Based Coacervate Protocells - Ajay Verma, Laboratory of Biophysics and Evolution 17:30-19:30 (2h)

› Amino Acids as Molecular Linchpins in the Fundamental Prebiotic Processes of RNA Copying and Vesicle Formation - Udita Bandyopadhyay, Indian Institute of Science Education and Research Pune 17:30-19:30 (2h)

› Codispersal and the Origin of Cells - Nicole Anderson, Wisconsin Institute for Discovery 17:30-19:30 (2h)

› On the Origin of the GNRA/receptor Structural Modules of RNA Molecules - Yi-Ling Kao, University of California [Santa Barbara] 17:30-19:30 (2h)

› Hydroxy Acid Conjugation to Lipids Increases Structural and Hydrolytic Stability - Rotem Edri, Institute of Chemistry, The Hebrew University of Jerusalem 17:30-19:30 (2h)

› The Molecular Keychain: Linking RNA Phenotype and Genotype Before Encapsulation. - Hendrik Boog, Simon Fraser University 17:30-19:30 (2h)

› Peptide-Based Coacervates Modulate the Function of Large Ribozymes - Peiying Li, RIKEN Center for Integrative Medical Science 17:30-19:30 (2h)

› Flavin Reduction Under Prebiotic Conditions - Oskari Lehtinen, Max-Planck-Institut für Terrestrische Mikrobiologie 17:30-19:30 (2h)

› Molecular Dynamics Reveals How Amino Acids Bind to Fatty Acid Membranes: A Path Towards Protocells - Taren Ginter, Earth-Life Science Institute [Tokyo], Department of Life Science and Technology (Institute of Science Tokyo) 17:30-19:30 (2h)

› Multistability in Chemical Reaction Networks: A Path to Primordial Heritable Variance? - Thomas Kosc, Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 17:30-19:30 (2h)

› Protocell Assembly and Chiral Regulation: From Molecular Self-Organization to Prebiotic Homochirality - Xiaofan Guo, Xiamen University 17:30-19:30 (2h)

› Prebiotically Plausible Vesicle Populations Can Respond to Selection for Greater Turbidity Via Emergent Cooperative Dynamics - Tymofii Sokolskyi, Wisconsin Institute for Discovery, University of Wisconsin-Madison 17:30-19:30 (2h)

› Compositional Memory Matters for Early Molecular Systems - Barnabé Ledoux, Gulliver (UMR 7083) 17:30-19:30 (2h)

› Self-assembled G-quadruplexes as scaffolds for prebiotic nucleic acid synthesis - Simon H. J. Eiby, Globe Institute, University of Copenhagen 17:30-19:30 (2h)

› Geochemically Constrained Protocell Formation under Azorean Hydrothermal Vent Conditions - José Orench-Benvenutti, Centro de Quimica Estrutural 17:30-19:30 (2h)

› Acid Activation of Clay Minerals and its Implications for Non-Enzymatic RNA Polymerization: the Relationship Between Mineral Structure and Catalytic Activity - Villafañe-Barajas Saul, Escuela Nacional de Ciencias de la Tierra, Universidad Nacional Autónoma de México 17:30-19:30 (2h)

› Multi-Scale Modeling of Synthetic Life Systems - Dibajeh Ahmad, Vrije Universiteit Amsterdam 17:30-19:30 (2h)

› Early Darwinian Evolution of Lipid Assemblies and Possible Support in Space Missions - Roy Yaniv, Department of Molecular Genetics, Weizmann Institute of Science 17:30-19:30 (2h)

› Integrative Analytical Unit for the Study of Emergent Catalytic Systems - Cédrick Bourseau, Eaux, Géochimie organique, Santé 17:30-19:30 (2h)

› Acyl Phosphate-Driven Peptide Oligomerisation in Protocell Models - Kun Dai, Freiburg Institute for Advanced Studies, University of Freiburg 17:30-19:30 (2h)

› Role of Quadruplexes in Origin of Translation - Nickolas Kankia, Department of Chemistry and Biochemistry, The Ohio State University, Columbus OH 43210, USA 17:30-19:30 (2h)

› Peptide Foldedness and Oligomerization Tune the Material Properties of Primordial Peptide–RNA Condensates - Ilan Edelstein, Weizmann Institute of Science 17:30-19:30 (2h)

› Bioalchemy - Andy Li, Howard Hughes Medical Institute, The University of Chicago 17:30-19:30 (2h)

19:30 - 21:00 (1h30)

Cocktail

Programme > Schedule