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arXiv · 2610.23500

The Atmospheric Chemistry and Surface Interactions on Mars (ACSIOM) Workshop 2025

Benjamin Benne·Megan A. J. Brown·Bethan S. Gregory·Paul M. Streeter·The ACSIOM Team
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Abstract

The ACSIOM workshop was held in Cambridge from 10th-12th November 2025. Its primary aims were twofold: 1) to gather UK researchers involved in Mars atmospheric science to identify current shortcomings and challenges in the field, and 2) to discuss possible collaborations and future steps needed to maximise the research output from current and future Mars missions. Workshop attendees spanned a wide range of subjects and disciplines, from atmospheric modellers and surface scientists to experimental chemists and Earth/Venus/exoplanet scientists. One of the primary outcomes of the workshop as identified by the attendees was the need for more collaborations between these different communities. It was agreed that we currently lack sufficient interaction between disciplines and this is a key challenge we need to overcome in order to properly utilise and exploit the vast pool of martian expertise available in the UK. Modellers need reaction rates from experimentalists; experimentalists need modelling context to prioritise their experiments; geologists need modelling context to understand the features they see; modellers need geological context to constrain their results. Attendees stressed that the UK Mars community has a critical mass which is internationally recognised, and improving the communication between communities would allow significant progress to be made in martian research, allowing the UK to maintain leadership in Mars science for years to come. We highlight that this is a pivotal moment for such investments as many planetary missions, both for Mars and other terrestrial bodies, are about to be launched or are being considered in the coming years. Having a strong and close-knit community will be key to better identifying needs and capabilities in order to optimise investments in missions and to have the best scientific return possible.

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Benjamin Benne, Megan A. J. Brown, Bethan S. Gregory, Paul M. Streeter, The ACSIOM Team. 2026-10-16. The Atmospheric Chemistry and Surface Interactions on Mars (ACSIOM) Workshop 2025. https://arxiv.org/abs/2610.23500

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