Stellar Forcing of Planetary and Exoplanetary Space Environments
COSPAR Scientific Assembly 1-9 August 2026, Florence
We draw you attention to the special interdisciplinary session “Stellar Forcing of Planetary and Exoplanetary Space Environments”, which shall be conducted during the 46th COSPAR Scientific Assembly, scheduled in Florence, Italy from 1 – 9 August, 2026. This session is co-listed E2.5 / D3.5 through Commission E (Research in Astrophysics from Space) and Commission D (Space Plasmas in the Solar System) of COSPAR. We encourage you to submit abstracts to this session and note that the abstract deadline is close: 13 February 2026.
Session Description: The Sun and other magnetically active stars influence their space environments through variable radiative and energetic particle fluxes, plasma wind outflow, stellar flares and coronal mass ejections. These dynamic phenomena impact the state of the heliosphere and astrospheres where (exo)planets reside. Studies of the origin of stellar activity, their heliospheric manifestation, and their impact have matured in the solar system – particularly in the context of planetary bodies such as Venus, Earth, Mars and Moon. At the same time, we are witnessing pioneering studies in understanding star-planet interactions and its role in shaping atmospheric evolution and habitability in exoplanetary systems. In the context of ambitious plans for planetary exploration on the one hand, and rapid advances in space-based exoplanetary studies on the other, this session aims to catalyze interdisciplinary exchanges across these diverse domains which share common physical foundations. Abstracts related to missions, observational data analysis and modelling in these domains are welcome.
Further details on COSPAR 2026, including links to abstract submission and registration are available at: https://cospar2026.org/
With best wishes,
Dibyendu Nandi (CESSI, IISER Kolkata, India)
Alessandro Bemporad (INAF, Italy)
Christina Plainaki (MPS, Germany)
Nat Gopalswamy (NASA/ GSFC, USA)
Shyama Narendranath (ISRO, India)
Vladimir Airapetian (NASA GSFC, USA)
Bhargav Vaidya (IIT Indore, India)