Coronal mass ejections (CMEs) are some of the most extreme manifestations of the Sun’s dynamic activity and are prominent drivers of space weather disturbances at Earth, as well as other solar system bodies. Over the past few decades, remote-sensing and in-situ measurements, together with analytical and MHD modelling efforts, have led to remarkable advances in our understanding of CMEs, but many open questions still stand. These include, for example, the formation and eruption mechanism(s) of CMEs, the factors that dictate their early evolution in the solar corona, their detailed 3D configuration as they propagate through interplanetary space, the processes at play during CME interactions with the structured solar wind, and/or other transients and the presence of pre-eruptive properties that can determine CME geoeffectiveness. As we pass through the maximum of Solar Cycle 25, it is important to reassess our current knowledge of solar eruptions and to identify promising avenues to further improve our capabilities to observe, analyse, model, and forecast CMEs.
This session encourages contributions that focus on advancing CME science over a wide range of aspects and approaches. Presentations that we welcome include studies that employ remote-sensing and/or in-situ observations, modelling efforts that focus on CME eruption and/or propagation in the corona and heliosphere, and mission concepts that have the potential to significantly advance CME fundamental research. Particular emphasis will be given to contributions that employ novel theories, measurements, and/or techniques.