Conveners: Jingnan Guo, Robert Wimmer-Schweingruber, Zhonghua Yao, Binbin Ni, Chongjing Yuan
Space radiation is a limiting factor for human exploration of the solar system and may also limit the habitability of planets and moons in the solar system. Recent planetary missions to the Moon, Mercury, Mars, Jupiter, Saturn, etc. and their moons (ARTEMIS, MAVEN, BepiColombo, MSL, Juno, JUICE, Europa Clipper and so on) have advanced our understanding of the space environment of different planetary bodies. Planets and their moons are exposed to space radiation which can be dominated by the Sun, or Galactic Cosmica Rays (GCR), or planetary radiation belts (as in the case of the Jovian system). Meteorites that provide samples of solar system bodies (including Mars) to Earth have experienced millions of years of unshielded space radiation, which may have erased astrobiological traces of if there ever were any. Moreover, recent discoveries of exoplanets in the habitable zones around magnetically active young starts also suggest that many exoplanets should be hosting an ionizing radiation environment which have critical impacts on their habitability. This session will discuss space radiation in the highly diverse environments present in the solar system (and elsewhere) , including high-energy particles accelerated from the Sun, in the planetary magnetopshere and from outside the solar system, and provide an interdisciplinary forum for exciting discussions.
Keywords: space weather, planetary magnetosphere, planetary habitability
This session is part of AOGS2025, which will be held in Singapore from 27 July to 01 August 2025, with 32 sessions in Solar and Terrestrial Sciences.
(Transmis par Miho Janvier)