Coronal mass ejections (CMEs) can be listed amongst 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, remarkable advances through remote-sensing and in-situ measurements combined with analytical and MHD modeling have been made, but many fundamental questions remain regarding CME formation and eruption mechanisms, early coronal evolution, 3D interplanetary configuration, and interactions with the structured solar wind and other transients. As Solar Cycle 25 progresses beyond its maximum phase and towards the minimum, it is time to reassess our current understanding and identify promising directions for advancing CME observations, analysis, modeling, and forecasting capabilities.

This session encourages contributions that advance CME science across a wide range of approaches, taking advantage of the wealth of currently available observational data and models. We welcome presentations employing remote-sensing and/or in-situ observations, multi-spacecraft studies, modeling efforts focusing on CME eruption and/or propagation, and mission concepts that can significantly advance fundamental research while addressing remaining observational and knowledge gaps. Particular emphasis will be given to contributions employing novel theories, measurements, and techniques.