Build a more complete understanding of the Sun-Earth connection by measuring the solar wind and its dynamic interaction with the magnetosphere

The ESA's Cosmic Vision 2015-2025 program aims to deepen our understanding of the Solar System, with Sun-Earth connection among the areas of study. The interaction between the solar wind and Earth's magnetosphere can have profound effects on space-based technologies and human life. While missions like Cluster and SOHO have significantly expanded our knowledge, we still lack the ability to accurately predict solar storms.
Set to launch in late 2025, the SMILE (Solar-wind Magnetosphere Ionosphere Link Explorer) mission is a collaborative effort between ESA with its Member States and the Chinese Space Agency. SMILE aims to explore the dynamic interaction between Earth's protective magnetosphere and the supersonic solar wind. By providing new insights into these complex processes, the mission will enhance our understanding of the physical mechanisms underlying the continuous exchange between the solar wind and the magnetosphere.
SMILE's findings will provide unique informaton to plan better protection for space infrastructure and advancing our knowledge of how Solar activity impacts also Earth's environment. Additionally, the mission will contribute to our understanding of Earth's magnetic field, which acts as a shield against solar activity, while supporting both environmental and technological sustainability.