JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS17] Astrobiology

convener:Hikaru Yabuta(Hiroshima University, Department of Earth and Planetary Systems Science), Seiji Sugita(Department of Earth and Planetary Science, Graduate School of Science Sciece, The University of Tokyo), Misato Fukagawa(National Astronomical Observatory of Japan), Fujishima Kosuke(Tokyo Institute of Technology, Earth-Life Science Institute)

Twenty years have passed since when the field of Astrobiology, which aims to unveil the origins, evolution, and habitability of life by integrating multidisciplinary fields, was established. Individual themes related to Astrobiology, such as chemical evolution in the early Solar System, formation of planetary system, prebiotic chemistry in the early Earth, evolution of life in the Earth's history, extremophile, and habitable planetary environments, has been studied by the knowledge and methods from the multiple fields, which has enabled us to explain "Where we came from" in some ways. However, despite an overwhelming number of investigations and discussions through gathering of the scientists from different fields, there has remained the long-standing unsolved question: How did abiotic materials gain biological function in the Earth and elsewhere in universe? There is still a large gap between prebiotic organic chemistry and biochemistry toward Origins of Life and planetary habitability. Therefore, the JpGU Astrobiology session focuses on pathfinding of "integration of astronomy, geoscience, and biochemistry", which will face an increasing need for the future Astrobiology. In order to enhance our understanding of "What is life", we propose to discuss the biochemical events linked with planetary systems, which is beyond the knowledge in a test tube, by an integration of exoplanets and molecular biology, etc. Through this approach, we will lead the discussions and developments of life-detection strategies for the future exploration of life in universe.

*Akihiko Yamagishi1,2, Hirofumi Hashimoto2, Hajime Yano2, Yuko Kawaguchi9, Shin-ichi Yokobori1, Kensei Kobayashi3, Mita Hajime4, Hikaru Yabuta5, Masumi Higashide6, Makoto Tabata7, Eiichi Imai8 (1.Tokyo University of Pharmacy and Life Science, Department of Molecular Biology, 2.ISAS/JAXA, , 3.Yokohama National University, , 4.Fukuoka Institute of Technology, , 5.Hiroshima University, 6.Japan Aerospace Exploration Agency, 7.Chiba University, 8.Nagaoka University of Technology, 9.Chiba Institute of Technology)

*Sohsuke Ohno1, Norimune Miyake1, Ko Ishibashi1, Yuko Kawaguchi1, Osamu Okudaira1, Keisuke Maeda1, Issei Iijima2, Yuya Kakehashi2, Manabu Yamada1, Akihiko Yamagishi3, Kazuhiko Yamada2, Yusuke Takahashi4, Satoshi Nonaka2, Segawa Takahiro5, Hideyuki Fuke2, Tetsuya Yoshida2, Takafumi Matsui1 (1.Chiba Institute of Technology, 2.Japan Aerospace Exploration Agency, 3.Tokyo University of Pharmacy and Life Sciences, 4.Hokkaido University, 5.University of Yamanashi)