Research
Modeling the Origin(s) of Life.
We use numerical simulation, and statistical modeling to explore properties of living systems and understand how they can emerge from simpler, non-living components.
Life Detection from First Principles.
A key challenge in astrobiology is that we don't have widely accepted definitions of life. We take a pragmatic approach to life detection, while still engaging with the underlying challenges.
Assembly Theory for Complex Systems.
We use assembly theory to understand the emergence of complex features in physical systems, and how to build systems that will enable the open-ended evolution complex features, both the lab and in silico.
Highlighted Publications
Self-organization in computation and chemistry: Return to AlChemy
Chaos: An Interdisciplinary Journal of Nonlinear Science
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01 Sep 2024
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doi:10.1063/5.0207358
Life detection in a universe of false positives
BioEssays
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11 Oct 2023
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doi:10.1002/bies.202300050
Identifying molecules as biosignatures with assembly theory and mass spectrometry
Nature Communications
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24 May 2021
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doi:10.1038/s41467-021-23258-x
All Publications
2025
Convergent Functional Constraints Make Biochemical Reaction Diversity Predictable
Cold Spring Harbor Laboratory
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22 Jun 2025
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doi:10.1101/2025.06.20.660822
The Emergence of Chirality from Metabolism
arXiv
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01 Jan 2025
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doi:10.48550/arXiv.2505.01056
Open, Reproducible Calculation of Assembly Indices
arXiv
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01 Jan 2025
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doi:10.48550/arXiv.2507.08852
Historical Contingencies Steer the Topology of Randomly Assembled Graphs
arXiv
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01 Jan 2025
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doi:10.48550/arXiv.2507.00335
Challenge-Based Funding to Spark Origins Breakthroughs
arXiv
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01 Jan 2025
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doi:10.48550/arXiv.2507.00106
2024
Experimentally measured assembly indices are required to determine the threshold for life
Journal of The Royal Society Interface
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01 Nov 2024
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doi:10.1098/rsif.2024.0367
Self-organization in computation and chemistry: Return to AlChemy
Chaos: An Interdisciplinary Journal of Nonlinear Science
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01 Sep 2024
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doi:10.1063/5.0207358
Investigating and Quantifying Molecular Complexity Using Assembly Theory and Spectroscopy
ACS Central Science
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18 Apr 2024
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doi:10.1021/acscentsci.4c00120
Self-Organization in Computation & Chemistry: Return to AlChemy
arXiv
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01 Jan 2024
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doi:10.48550/arXiv.2408.12137
Experimental Measurement of Assembly Indices are Required to Determine The Threshold for Life
arXiv
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01 Jan 2024
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doi:10.48550/arXiv.2406.06826
2023
False Positives and the Challenge of Testing the Alien Hypothesis
Astrobiology
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01 Nov 2023
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doi:10.1089/ast.2023.0005
Life detection in a universe of false positives
BioEssays
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11 Oct 2023
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doi:10.1002/bies.202300050
What it takes to solve the Origin(s) of Life: An integrated review of techniques
arXiv
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01 Jan 2023
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doi:10.48550/arXiv.2308.11665
Determining Molecular Complexity using Assembly Theory and Spectroscopy
arXiv
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01 Jan 2023
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doi:10.48550/arXiv.2302.13753
2022
The Futility of Exoplanet Biosignatures
arXiv
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01 Jan 2022
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doi:10.48550/arXiv.2205.07921
Investigating the autocatalytically driven formation of Keggin-based polyoxometalate clusters
Matter
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01 Jan 2022
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doi:10.1016/j.matt.2021.11.030
False positives and the challenge of testing the alien hypothesis
arXiv
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01 Jan 2022
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doi:10.48550/arXiv.2207.00634
2021
Exploring the sequence space of unknown oligomers and polymers
Cell Reports Physical Science
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01 Dec 2021
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doi:10.1016/j.xcrp.2021.100685
Exploring and mapping chemical space with molecular assembly trees
Science Advances
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24 Sep 2021
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doi:10.1126/sciadv.abj2465
A robotic prebiotic chemist probes long term reactions of complexifying mixtures
Nature Communications
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10 Jun 2021
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doi:10.1038/s41467-021-23828-z
Identifying molecules as biosignatures with assembly theory and mass spectrometry
Nature Communications
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24 May 2021
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doi:10.1038/s41467-021-23258-x
Exploring and Mapping Chemical Space with Molecular Assembly Trees
American Chemical Society (ACS)
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05 May 2021
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doi:10.26434/chemrxiv.13476597
2020
Identifying Molecules as Biosignatures with Assembly Theory and Mass Spectrometry
American Chemical Society (ACS)
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16 Nov 2020
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doi:10.26434/chemrxiv.13227881.v1
A Universal Sequencing System for Unknown Oligomers
American Chemical Society (ACS)
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09 Nov 2020
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doi:10.26434/chemrxiv.13202969.v1
Spontaneous formation of autocatalytic sets with self-replicating inorganic metal oxide clusters
Proceedings of the National Academy of Sciences
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05 May 2020
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doi:10.1073/pnas.1921536117
2019
Spontaneous Formation of Autocatalytic Sets with Self-Replicating Inorganic Metal Oxide Clusters
American Chemical Society (ACS)
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14 Aug 2019
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doi:10.26434/chemrxiv.9598442.v1
Individual perception dynamics in drunk games
Physical Review E
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28 May 2019
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doi:10.1103/PhysRevE.99.052311
Environmental control programs the emergence of distinct functional ensembles from unconstrained chemical reactions
Proceedings of the National Academy of Sciences
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06 Mar 2019
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doi:10.1073/pnas.1813987116
Universal scaling across biochemical networks on Earth
Science Advances
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04 Jan 2019
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doi:10.1126/sciadv.aau0149
2018
Environmental Control Programs the Emergence of Distinct Product Ensembles from Unconstrained Chemical Reaction Networks
American Chemical Society (ACS)
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14 Aug 2018
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doi:10.26434/chemrxiv.6962813.v1
Individual perception dynamics in drunk games
arXiv
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01 Jan 2018
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doi:10.48550/arxiv.1807.08635
2017
Universal scaling across biochemical networks on Earth
Cold Spring Harbor Laboratory
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31 Oct 2017
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doi:10.1101/212118
Prebiotic RNA Network Formation: A Taxonomy of Molecular Cooperation
Life
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16 Oct 2017
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doi:10.3390/life7040038
The Emergence of Life as a First-Order Phase Transition
Astrobiology
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01 Mar 2017
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doi:10.1089/ast.2016.1481