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Mission 3: Sustainable Space Environments for Humankind

Updated: 2022/06/07

The aim of Mission 3 is to advance research for the understanding of space and atmospheric environments and their interactions with the human living environment-sphere and the forest-sphere by using satellites, space stations, sounding rockets, ground-based radar, and computer simulations. This mission also aims to respond to the societal demand for the utilization of sustainable space environments by deepening our understanding of the fluctuations in radiation belts and geomagnetic storms due to solar flares and by proposing measures to tackle threats from space, including potentially hazardous space debris and asteroids. For example, we study an engineering approach to prevent asteroid impacts on the Earth, as these events cause severe damage. This mission not only deals with understanding and utilizing space environments, but it also emphasizes the maintenance and improvement of space environments for daily human life, as well as interactions with the atmosphere, the forest-sphere, and the human living environment-sphere.

2021 Activity Report for Mission 3

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Space Plasma Simulations

The geospace environment is subject to high variability due to solar activity. We perform computer simulations of sub-storms that result in auroras, the generation of electromagnetic waves, and associated particle dynamics in radiation belts to understand variations in electromagnetic environments of space plasmas.

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Study of Geomagnetically-Induced Currents

Electric currents flowing in space occasionally induce largescale currents on the ground, potentially causing power outages. Understanding the physics of the connection between space and the ground, we help improve the safety of the power grid system.

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Exploration of Space Electromagnetic Environments

Dynamic changes in space electromagnetic environments affect human activities on Earth and in space. We investigate electromagnetic phenomena in space using cutting-edge instruments, onboard satellites, and sounding rockets.

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Development of New Materials for Space Humanosphere

For future space missions, new material sciences, namely, fine bubble technology and nano-metal compounds, are studied. Fine bubble technology is also applied to agricultural research.

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