Our goal is to describe atoms that represent element distribution of the Solar system that are continuously evolving from the beginning to the future. To understand the Solar system with spatial scale 1013 m, we analyze planetary materials that are from different origin with different processes, and determine element and isotope compositions with spatial resolution down to 10-9 m.

Planetary materials besides terrestrial ones are the rolling stones that are sampled with locality unknown. To fill the important missing information, we developed a protocol that is to determine multiple-elements, multiple-isotopes, and multiple-phases. We referred the approach to be 'comprehensive' and construct an analytical system that let us do so. The system acts as a gigantic machine with numerous instruments glued by analytical methods and disciplined people. The disciplines and samples would be taken over to the next generation to sustain our science.

We work as a team and prefer arguments scientifically.

LATEST NEWS
Insights into the formation and evolution of extraterrestrial amino acids from the asteroid Ryugu

03/31/2023

The amino acid abundances of two Ryugu particles were measured and compared with their rocky components. The results demonstrate the important role that water plays in the formation of amino acids on the giant precursors of asteroids like Ryugu.

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On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective

06/10/2022

A team of scientists undertake a comprehensive analysis of samples returned from the Japan Aerospace Exploration Agency’s Hayabusa2 mission and provide invaluable insights into the formation and evolution of our solar system. [ ... Read More ... 続きを読む]

sts group
小惑星リュウグウの研究で用いた地球化学的手法は人体に関係する研究にそっくりそのまま応用できます．宇宙を支配する摂理と同じ摂理がヒト内部の物質の挙動を決めるのです．われわれは惑星物質について，分け隔たりなく理解することを目指しています．[ ... 続きを読む ... Read More]

05/13/2023

sts group
PJA newsletter 15 号 (2023.3) にて座談会 [中村栄三・津田雄一さん・家正則さん・深尾良夫さん] の様子が紹介されました．

04/18/2023

LATEST PUBLICATIONS

2022-2023


Maya-Liliana Avramescu, Christian Potiszil, Tak Kunihiro, Kazunori Okabe, and Eizo Nakamura. An investigation of the internal morphology of asbestos ferruginous bodies: constraining their role in the onset of malignant mesothelioma, Particle and Fibre Toxicology, 20, 19 (2023).

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Wei Zhang, Hiroshi Kitagawa, and Eizo Nakamura. Lithium Isotope Constraints on Slab and Mantle Contribution to Arc Magmas, Journal of Geophysical Research: Solid Earth, 128 (5), e2022JB025670 (2023).

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Christian Potiszil, Tsutomu Ota, Masahiro Yamanaka, Chie Sakaguchi, Katsura Kobayashi, Ryoji Tanaka, Tak Kunihiro, Hiroshi Kitagaw, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Satoru Nakazawa, Masahiro Nishimura, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Tomohiro Usui, Sei-ichiro Watanabe, Toru Yada, Kasumi Yogata, Makoto Yoshikawa and Eizo Nakamura. Insights into the formation and evolution of extraterrestrial amino acids from the asteroid Ryugu, Nat Commun. 14, 1482 (2023).

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N. Kucukarslan, T. Ota, K. Kobayashi, E. Nakamura, and S. Omura. Early Efforts to Smelt Iron in Central Anatolia: Analysis of Iron Artefacts from the Bronze Age in Kaman-Kalehöyük, Microstruct. Anal., (2023).

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SEMINAR, SYMPOSIUM & WORKSHOP

2022-2023


April 11, 14:00 AM in 3F Seminar Room
Seminar by Dr. Andreas Auer (Department of Earth Science, Shimane University)

March 15, 16:00 AM in 3F Seminar Room
Seminar by Prof. Gray Bebout (Lehigh University)

March 7, 10:00 AM in 3F Seminar Room
Seminar by Dilan M. Ratnayake

December 13, 10:00 AM in 3F Seminar Room
Seminar by Noah Miklusicak

September 27, 10:00 AM in 3F Seminar Room
Seminar by Rahul Kumar

September 6, 10:00 AM in 3F Seminar Room
Seminar by Havishk Tripathi

August 23, 10:00 AM in 3F Seminar Room
Seminar by Koya Kobayashi (D1, Graduate School of Life and Environmental Sciences, Tsukuba University)

August 19, 16:00-17:00 in 3F Seminar Room
PhD defense presentation by Maya-Liliana Avramescu



SOCIAL MEDIA

PML -Pheasant Memorial Labratory-