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Not only national space agencies but also universities and private companies are now leading a growing number of space science and exploration missions, actively initiating new research activities in satellite and rocket development as well as international collaboration. Deployment to space serves as a powerful means to advance science, driving both technological innovation and educational development. The success of space missions also depends on the research and development of goal-oriented onboard instruments, and in some cases, fundamental advances in observational instrumentation with future perspectives can themselves define the direction of missions. Proposals, selection processes, and fabrication of onboard instruments require detailed investigation and evaluation. At each stage of a mission, regardless of its scale, multidimensional coordination and refinement are essential. This session highlights such comprehensive research activities in space and planetary missions, including both mission integration and individual instrument development. Presentations will showcase novel strategies and methodologies, unique technological advances, and the latest results in state-of-the-art research and development. These contributions aim to provide researchers and developers with valuable opportunities for active discussion, knowledge exchange, and collaboration toward realizing future missions that will further enrich space science and exploration.