Magnetic Fluctuations and Turbulence in the Space Environments of Unmagnetized Planets: Insights from Venus and Mars

The interaction between solar wind and unmagnetized planets, exemplified by Venus and Mars, is a significant issue in planetary sciences. The absence of global intrinsic magnetic fields on these planets results in the formation of complex and unique induced magnetospheric environments due to their interactions with the solar wind. Our study aims to systematically analyze scientific data obtained from planetary space missions to investigate the dynamic magnetic field environments within these induced magnetospheres, with particular emphasis on magnetic fluctuations and multiscale turbulence phenomena. We focus on characterizing the properties, propagation mechanisms, and evolutionary processes of these phenomena. To deepen our understanding of induced magnetospheric environments, we employ a comparative planetology approach, analyzing the differences and similarities between the induced magnetospheres of Venus and Mars. This comparative analysis reveals distinct features and commonalities while exploring the underlying formation mechanisms. In addition, by integrating three-dimensional magnetohydrodynamic simulations, we aim to further uncover the dynamic evolution of these turbulent magnetic environments, thereby providing a theoretical foundation for interpreting the unique space environments of unmagnetized planets. This research not only enhances our understanding of the space environments of unmagnetized planets but also offers critical scientific insights for the design and execution of future deep-space exploration missions.