Current space missions (Parker Solar Probe, Solar Orbiter, IMAP, ACE, Wind, STEREO, JUICE, BepiColombo, MMS) provide unprecedented opportunities to study collisionless shocks throughout the heliosphere. Shocks play a major role in turbulence generation and particle acceleration. High-resolution 3D measurements of particle velocity distributions are advancing our understanding of seed populations; however, energy partition remains an open question. The interplay between shock and turbulence in foreshock regions, the impact of post-shock magnetic irregularities on particle fluxes via plasmoid instability, and the role of reverse shocks in the energy and pitch-angle distributions of charged particles are poorly understood. Strong near-Sun shock events have opened a new regime for model validation. Additionally, active magnetic reconnection within the interaction regions of paired shocks is being investigated. This session invites observational, theoretical, and numerical studies leveraging multi-spacecraft data and simulations to advance understanding of shock-driven processes.

• P - Planetary Sciences
• SM - SPA-Magnetospheric Physics