Richard Soare is a physical geographer and planetary scientist who specializes in periglacial (cold-climate, non-glacial) landscapes. For over two decades Dr. Soare has studied the mid-latitudes of Mars, i.e. Utopia Planitia, the Argyre region and the Martian dichotomy, and explored the possibility of freeze-thaw cycled water having revised the near-surface geology of these areas from the present and relatively recent past through to their deep-history. His published work in major planetary-science journals such as Icarus and Earth and Planetary Science has integrated HiRISE/CTX imagery with crater-age estimates, digital elevation models and SHARAD/MARSIS data sets. Much of this Mars-centred work has been informed by multiple field seasons in the Canadian arctic (the Tuktoyaktuk Coastlands and Axel Heiberg Island) and sub-arctic (Shefferville, Quebec). Currently, Dr. Soare is lead editing a book on Ices in the solar system (2022). Two books Dynamic Mars: recent and current landscape evolution of the red planet (2018) and Mars Geological Enigmas: From the Late Noachian Epoch to the Present Day (2021) preceded the Ices book. A fourth book, Mars Climate Change, will succeed the Ices book in two years. Prior to the postponement of the Next Mars Orbiter, the pre-cursor of the Mars Ice Mapper Mission, Dr. Soare served on the Canadian Space Agency’s pre-phase “A planning committee. He was tasked with and focused on identifying mid-latitudinal regions of Mars where near-surface ground ice might be prevalent. Jean-Pierre Williams is a researcher at the University of California in Los Angeles (UCLA). He received his PhD in Geophysics and Space Physics from UCLA and was a research scientist at the California Institute of Technology before returning to UCLA. His work focuses on the geology and physics of the inner planets. He is the author/co-author of over 50 peer-reviewed publications and is currently the Deputy-PI of the Diviner Lunar Radiometer Experiment on the Lunar Reconnaissance Orbiter. Caitlin Ahrens is a NASA Postdoctoral Program (NPP) Fellow planetary researcher at NASA Goddard Space Flight Center, Greenbelt, Maryland. Her main interest lies in the thermodynamics of ice species in the outer solar system and how ice phases relate to the variety of geophysical and geomorphologic structures observed using Voyager, Galileo, Cassini and New Horizons data. Dr Ahrens has been involved in both experimental work, both in instrumentation and infrared spectroscopy, with ices at low temperatures and pressures relevant to Pluto conditions, and modelling work for cryo-volcanism and ice-related processes, such as labyrinth formations on Titan and glacial dynamics on Pluto. She is also involved with modeling of ice at the lunar poles and of cryofluids at Ceres. Frances Butcher is a Postdoctoral Researcher at the University of Sheffield in the UK. She completed her PhD, entitled ‘Wet-Based Glaciation on Mars’, at the Open University in 2019. She is a geomorphologist whose research focusses on glaciation and other ice-related processes on Mars and Earth. Her particular interest is in the landforms left behind by glaciers and ice sheets, and their implications for past environmental change on both planets. Her research involves the use of remote sensing data for mapping and quantitative 3D terrain analyses, as well as interplanetary comparisons. These techniques inform empirical and numerical modelling reconstructions of glacial processes and past environmental change. To date, she has authored/co-authored 12 peer-reviewed publications. She is currently the chair of the International Association of Geomorphologists Planetary Geomorphology Working Group. Dr. El-Maarry has been involved with numerous space missions in the past 15 years for both ESA and NASA, including ESA’s Rosetta mission to comet 67P/Churyumov-Gerasimenko, and ESA’s ExoMars Trace Gas Orbiter mission, in addition to being on the science teams for numerous other active and future missions including the HiRISE camera on board NASA’s Mars Reconnaissance Orbiter, ESA’s Comet Interceptor mission, and the UAE’s upcoming Emirates Lunar Mission. He is currently the director of the Space and Planetary Science Center and an associate professor of planetary sciences at Khalifa University in Abu Dhabi, the United Arab Emirates. His research covers planetary surfaces with a focus on geomorphology and associated physical processes. In addition to his research activities, he has participated in numerous reviewing and expert NASA and ESA evaluation panels.