Institute of Science Tokyo Earth-Life Science Institute, Department of Earth and Planetary Science Genda-Lab

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In Genda-lab, we are doing research on how solar system bodies (planets, satellites, small bodeis etc.) formed and evolved. Our goal is to understand the origins of wide varieties among those boides. Why does Earth have oceans? Why not for the others? What determined the size of planets? Are there life beyond Earth? What conditions made Earth have life? We are investigating those fundamental questions. In our lab, we are solving the processes in which planetary bodies form and evolve based on physical and chemical laws mainly via computer simulations. We call this numerical experiments. Our results and hypotheses should be tested and validated. So, we are being involved in on-going and future planetary explorations (Hayabusa 2, MMX etc.), and we are collaborating with many researchers whose specialities are experiments, analysis, observations, and field works. Let's enjoy research together!

Recent Information

2026/06/26 A paper by Genda-lab student Lyara was published paper in Academia Earth and Planetary Science. We developed an analysis tool for estimating the source depths and faulting mechanisms of marsquakes from seismic waveforms recorded by NASA's InSight mission. Applying the tool to three marsquakes, we showed that the estimated source depths and fault orientations are broadly consistent with previous studies and mapped geological structures on Mars. Villanova Silverio, L., and Genda, H. (2026) AresWave: estimation of marsquake source parameters by waveform fitting with stochastic optimization. Academia Earth and Planetary Science 1, doi:10.20935/AcadEPS8376. / AEPS HP 2026/03/16 A paper by Genda-lab student Taniguchi was published in The Astrophysical Journal. Using a three-dimensional climate model, we investigated how "atmospheric collapse," in which atmospheric carbon dioxide condenses and the atmosphere diminishes, affects the habitability of tidally locked terrestrial exoplanets orbiting M dwarfs. We showed that even though atmospheric collapse weakens the greenhouse effect, it also reduces heat transport from the dayside to the nightside, potentially allowing liquid water to remain on the dayside. Taniguchi, K., Kodama, T., Turbet, M., Chaverot, G., Millour, E., and Genda, H. (2026) Atmospheric Collapse and Habitability on Tidally Locked Exoplanets. The Astrophysical Journal 1000, 99 (10pp). / ApJ HP / astro-ph

Access to Genda-Lab

Genda-lab is located at Ookayama campus (Ishikawadai area) in Institute of Science Tokyo. Genda's office is 302 room on the 3rd floor in ELSI-1 building (= Ishikawadai-7 building). It takes 12 mins from Ookayama station and 5 mins from Ishikawadai station by walk.

Contact

Address	2-12-1-I7E-302 Ookayama, Meguro-ku, Tokyo 152-8550, Japan Institute of Science Tokyo Earth-Life Science Institute Hidenori GENDA	Telephone	+81-3-5734-3289
		E-mail	genda_at_elsi.jp (change _at_ to @)

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