太阳风持续与地球磁场相互作用，驱动磁层对流、亚暴及磁暴等大尺度空间天气过程。这些事件不仅影响空间环境，还可能对卫星、通信和电力系统造成影响。传统的在轨卫星原位观测虽然揭示了局地物理过程，但缺乏捕捉系统级动态的整体视角。太阳风–磁层–电离层联动探测卫星（SMILE）是欧洲航天局（ESA）与中国科学院（CAS）联合开展的任务，旨在通过全球成像首次系统观测磁层演化。SMILE将在高度椭圆轨道上运行，结合磁层边界的软X射线成像与极光的紫外成像，研究太阳风–磁层–电离层耦合的整体演化。此次报告将介绍任务背景与概况，阐述其科学目标及深化论证，并回顾近期任务进展及相关支撑研究。

The solar wind constantly interacts with Earth’s magnetic field, driving large-scale processes such as magnetospheric convection, substorms, and storms. These events impact space weather and can affect satellites, communications, and power systems. While traditional in-situ satellite measurements have revealed important have provided important insights into local processes, they lack the global view needed capture the system-level dynamics. The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) is a joint ESA–CAS mission designed to address this gap by providing the first global imaging of the magnetosphere. Operating in a highly elliptical orbit, SMILE will combine soft X-ray imaging of the magnetospheric boundaries with ultraviolet auroral imaging to study the global evolution of solar wind–magnetosphere–ionosphere coupling. This talk will introduce the mission background and profile, outline its core science objectives, and review recent progress in mission development and supporting research.

戴磊，中国科学院国家空间科学中心研究员、博士生导师，2024 年国家杰出青年基金获得者。长期从事空间物理研究，提出磁重联微观电磁场解析解并揭示日侧驱动磁层对流新模式。现任中欧联合 SMILE 卫星科学应用系统总师及热离子探测仪首席专家, 并提出磁层多尺度星座探测计划（AME）。

DAI Lei, Professor at the National Space Science Center, CAS, and recipient of the 2024 NSFC Distinguished Young Scientist Award. His research focuses on space plasma physics, including micro-scale Hall structures in reconnection and global-scale dayside-driven magnetospheric convection. He currently leads the Science Application System for the ESA–CAS SMILE mission , and proposed the AME multi-satellite constellation.