Understanding how the solar wind is formed, accelerated, and transported through the heliosphere remains central to advancing both heliophysics and space weather forecasting. Measurements from recent missions such as Parker Solar Probe, Solar Orbiter, Proba-3, PUNCH and BepiColombo have been opening up new paths to unexplored regions of near-Sun space and provided unprecedented perspectives on solar wind variability. Looking ahead, upcoming observatories like ESA’s Vigil will further expand our capability to connect coronal drivers with in-situ measurements across the heliosphere, and to better predict their space weather impacts.
This session invites contributions that make use of theoretical advances, innovative modelling approaches, and multi-platform observations to probe the solar wind and to determine its properties from its source regions to its interactions with planetary environments. Topics of interest include the origins of the fast and slow solar wind, mechanisms of heating and acceleration, evolution of large-scale structures, fine-scale dynamics, and the role of magnetic connectivity. We particularly welcome studies that integrate data and models to bridge scales and regions, as well as perspectives that outline future priorities for solar wind research.