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credit:NASA/JPL

Understanding of formation and evolution of the Solar system is a central goal of space explorations. Japanese researchers have contributed to achieve this goal, for instance, through sample return missions, such as Hayabusa, and development of "Kyoto model" that describes planet formation within a protoplanetary disk.

Through investigation of Jupiter and its icy moons by the JUICE mission, we then try to understand how our Solar system was designed in the early stages. Knowledge on the origin of our Solar system is critical to understand whether our Solar system is unique in the universe. Formation processes of Jupiter are also important to constrain the origin of atmosphere, oceans, and life on Earth.

The goal of JUICE-Japan includes to address the fundamental questions, such as “where did we come from?” and “who are we?”

PEOPLE JUICEを支える人々

As of Mar. 2019

1.Planetary scientists who develop science instruments
Name Organisation Instruments
Yasuko KASAI National Institute of Information and Communications Technology SWI
Yasumasa KASABA Graduate School of Science and Faculty of Science, Tohoku University RPWI
Kazushi ASAMURA Japan Aerospace Exploration Agency PEP
Keigo ENYA Japan Aerospace Exploration Agency GALA
Noriyuki NAMIKI RISE Project Team, National Astronomical Observatory of Japan GALA
Takeshi KURODA National Institute of Information and Communications Technology SWI
Hideo SAGAWA Faculty of Science, Kyoto Sangyo University SWI
2.Theoretical scientists who study planetary formation theory
Name Organisation Instruments
Junichi HARUYAMA Japan Aerospace Exploration Agency JANUS
Yasuko KASAI National Institute of Information and Communications Technology SWI
Noriyuki NAMIKI RISE Project Team, National Astronomical Observatory of Japan GALA
Jun KIMURA Graduate School of Science, Osaka University
Takeshi KURODA National Institute of Information and Communications Technology SWI
Hideo SAGAWA Faculty of Science, Kyoto Sangyo University SWI
Masahiro IKOMA Graduate School of Science, Tokyo University
Yasunori HORI AstroBiology Center, National Institutes of Natural Sciences
Shigeru IDA Dept. of Earth and Planetary Sciences, Tokyo Institute of Technology
Sho SASAKI Graduate School of Science, Osaka University
Kiyoshi KURAMOTO Graduate School of Science, Hokkaido University
Shunichi KAMATA Graduate School of Science, Hokkaido University
3.Astronomers who perform observation using telescopes
Name Organisation Instruments
Keigo ENYA Japan Aerospace Exploration Agency GALA
Masahiro IKOMA Graduate School of Science, Tokyo University
Shigeru IDA Dept. of Earth and Planetary Sciences, Tokyo Institute of Technology
4.Space physicists who investigate plasma and magnetic fields
Name Organisation Instruments
Yasumasa KASABA Graduate School of Science and Faculty of Science, Tohoku University RPWI
Kazushi ASAMURA Japan Aerospace Exploration Agency PEP
Ayako MATSUOKA Kyoto University J-MAG
Yoshifumi SAITO Japan Aerospace Exploration Agency
Masaki FUJIMOTO Japan Aerospace Exploration Agency
5.Geochemists who study water-rock reactions
Name Organisation Instruments
Yasuhito SEKINE Earth-Life Science Institute, Tokyo Institute of Technology
Takazo SHIBUYA Japan Agency for Marine-Earth Science and Technology
Manabu NISHIZAWA Japan Agency for Marine-Earth Science and Technology
List of Members
Name Organisation Instruments
2 Junichi HARUYAMA Japan Aerospace Exploration Agency JANUS
1・2 Yasuko KASAI National Institute of Information and Communications Technology SWI
1・4 Yasumasa KASABA Graduate School of Science and Faculty of Science, Tohoku University RPWI
1・4

Kazushi ASAMURA

Japan Aerospace Exploration Agency PEP
4

Ayako MATSUOKA

Kyoto University J-MAG
1・3 Keigo ENYA Japan Aerospace Exploration Agency GALA
1・2 Noriyuki NAMIKI RISE Project Team, National Astronomical Observatory of Japan GALA
2 Jun KIMURA Graduate School of Science, Osaka University GALA
1 Masanori KOBAYASHI Planetary Exploration Research Center, Chiba Institute of Technology GALA
1・2 Takeshi KURODA National Institute of Information and Communications Technology SWI
1・2 Hideo SAGAWA Faculty of Science, Kyoto Sangyo University SWI
5 Yasuhito SEKINE Earth-Life Science Institute, Tokyo Institute of Technology
2・3 Masahiro IKOMA Graduate School of Science, Tokyo University
5 Takazo SHIBUYA Japan Agency for Marine-Earth Science and Technology
2 Yasunori HORI AstroBiology Center, National Institutes of Natural Sciences
2・3 Shigeru IDA Dept. of Earth and Planetary Sciences, Tokyo Institute of Technology
2 Sho SASAKI Graduate School of Science, Osaka University
2 Kiyoshi KURAMOTO Graduate School of Science, Hokkaido University
2 Shunichi KAMATA Graduate School of Science, Hokkaido University
4 Yoshifumi SAITO Japan Aerospace Exploration Agency
4 Masaki FUJIMOTO Japan Aerospace Exploration Agency
5 Manabu NISHIZAWA Japan Agency for Marine-Earth Science and Technology

Project Manager
Yoshifumi SAITO

Project Science Manager
Yasuto Sekine

2012〜 Spacecraft Designing June 2022 Ariane 5 Launch January 2029 Entering Jupiter orbit Sept. 2032 Entering Ganymede orbit June 2033 Mission Complete

・搭載機器の研究開発
・航行軌道の検討
・科学目標の精査

バックアップ〜2022.9

⽊星へ巡航
地球→⾦星→地球→⽕星→地球→⽊星

2029〜2030.10
カリスト・フライバイ

〜2031.1
エウロパフライバイ

バックアップ〜2034.12

credit:NASA
credit:NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill