Submission of abstracts for the 46th Scientific Assembly of the Committee on Space Research (COSPAR) is open and the abstract deadline is 13 February 2026.You can find the details of the scientific assembly at the following links as well as below a list of sessions organized by Commission D and by Commission E on topics relevant to solar and heliospheric physics.
* Scientific program and abstract submission
* Registration, accommodation and general information
* Program for distinguished interdisciplinary lectures
* Scientific Assembly Poster (for download, display, circulation)
Early registration deadline: 17 May 2026
D1.1 Transport and Acceleration of Energetic Particles in the Heliosphere, the Interstellar Medium, and Astrospheres
D1.2 Science with Interstellar Mapping and Acceleration Probe (IMAP)
D1.3 Solar Energetic Particle Events throughout the Solar System: Understanding and Forecasting
D2.1/E3.1 Off-the-Sun-Earth-Line (OSEL) missions for a 3D view of the Sun and Heliosphere
D2.2/E3.2 Heliophysics Multi-Messenger Era: from Exploration to Paradigm Shifting Discoveries
D2.3/E3.3 Magneto-plasma Structures, Streams and Flows in the Heliosphere
D2.4/E3.4 Magnetic Reconnection in a Turbulent Plasma from the Sun to the Heliosphere
D2.6/E3.6 The Multifaceted Solar Wind: From its Origins on the Sun to Earth
D3.1 Highlights of Magnetospheric Plasma Physics
D3.2 Cross-scale Coupling and Multi-point Observations in the Solar Wind and Geospace
D3.3 Wave Particle Interactions and Non-thermal DistributionsEvent Description
E2.1 Solar-stellar Connections: Closing the Gap
E2.2 Reconciling Theory and Observations: a Session on High-resolution Diagnostics of the Photosphere, Chromosphere, and Corona
E2.3 The Life Cycle of Prominences: New Insights from Solar Orbiter and the Multi-messenger Era
E2.4 Solar jets, CMEs, and Associated EUV Waves
E2.5 Symbiosis of Waves and Reconnection (SWAR): a New Physical Insight into Understanding Heating and Plasma Dynamics at the Sun
E2.6 Waves in the Solar Atmosphere: Theory, Modelling, and Observations