News & Highlights


Sugahara's new paper about the adsorption of ammonia and its nitrogen K-edge XANES spectrum and 15N/14N-nitrogen isotopic fractionation is published in Analytical Sciences. [LINK] [2024/02/05]

Fukai's new article on the curation protocol related to the MMX mission is published in Meteoritics & Planetary Science. [LINK] [2024/01/11]

An article written by Sugahara et al. about planetary protection and contamination control at JAXA is posted on “thoughts related to the mission” in the ISAS website. [LINK: Japanese only] [2024/01/10]

Hirata's new article on the elemental composition model of Phobos for MMX/MEGANE observations is published in Icarus. [LINK] [2023/11/24]

Suzuki's new article on the relation between exospheric distribution and surface abundance on Mercury is published in EPSL. [LINK] [2023/11/20]

Hyodo and Dr. Ozaki won the first prize in S-Booster. [LINK]

The movie on the project they proposed can be seen here. [LINK] [2023/11/16]

Usui posted an article on the day of O-REx's Sample Return Capsule reentry (September 24, 2023), commenting on the sister sample return missions of OSIRIS-REx and Hayabusa 2 (in Japanese) [Link] [2023/09/25]

Sugahara received the Encouragement Award for young scientists from the Geochemical Society of Japan for her research about "Evolution of organic molecules in the universe and the delivery of precursors of life" and gave the Award lecture at the 70th Annual meeting of the society. [LINK] [2023/09/22]

Our previous Postdoctoral scholar Dr. Koike (present : Hiroshima Univ.) also received the same award together for her research about "An in-situ chronological study of differentiated meteorites to understand the planetary evolution". [LINK] [2023/09/22]

Hirata is featured in ISAS GATE. [Link] [2023/09/15]

Usui talks about MMX at UCLA SPACE Institute and Meteoritical Society Symposium. [Video] [2023/08/16]

Kajitani's article on Martian meteorite is published in EPSL. [Link] [2023/08/04]

Hirata receives JpGU 2023 Outstanding Student Presentation Award. [Link] [2023/07/10]

Suzuki and Sugimoto join our group. [Link] [2023/04/03]

Tomo Usui comments on an MMX article published online in PNAS. [Link]

Masunaga's new article is featured in ISAS GATE. [Jp] [En] [2023/02/01]


Hirata receives JpGU 2022 Outstanding Student Presentation Award. [Jp][En] [2022/09/29]

Hyodo receives prestigious Young Scientist Award (2021) from the Japanese Society for Planetary Sciences. [LINK]

Also an interview was published in ISAS website. [LINK] [2022/09/07]

Usui talks about Hayabusa2 on the NHK TV program "Science Zero". Time: 23:30-24:00 on July 17 & 24. [LINK]

Usui is one of 16 scientists selected to join a new research group for the NASA/ESA Mars Sample Return Program. [Link] [2022/06/17]

Usui and Fukai's work on Hyabusa2 samples are published in Science. [Link] [Press Release] [2022/06/10]

Usui and Fukai's work on Hyabusa2 samples published in Proceedings of The Japan Academy. [Link] [Press Release] [2022/06/13]

Hyodo's new article is featured in ISAS GATE. [Jp] [En] [2022/04/11]


Shoji's new article is featured in ISAS GATE. [Jp] [En] [2022/02/03]

Usui appears on the TBS radio to talk about Hayabusa2. [TBS Radio] [Spotify] [2021/12/10]

Usui delivered a fraction of Ryugu sample to Johnson Space Center, NASA on November 30. [ISAS Weekly] [Dr. Zurbuchen's Twitter] [NASA's Feature]

Shohei Aoki has been selected for the International Mars Ice Mapper Measurement Definition Team (MIM-MDT) to help support international efforts to plan potential human exploration of Mars [Link] [2021/11/12]

Hyodo's columns on Mars and Lunar sciences have been released. [2021/07/16]

Usui, Sugahara, Fukai, and the ISAS curation team have completed the initial description of the first batch of Ryugu samples and delivered it to the Hayabusa-2 sample analysis teams. Usui, Sugahara, and Fukai will also join the sample analysis teams. [JP] [2021/06/17]

"Why explore the moons of Mars?" Ryuki Hyodo shares the science behind JAXA's upcoming MMX mission to the Martian moons at the ISAS webpage. [JP] [EN] [2021/04/28]


Ryuki's paper (Hyodo et al. 2019 Sci. Rep) is featured in Nature. Ryuki and Tomo Usui comment on the significance of Phobos sample return. [Link][2020/07/31]

Tomo Usui comments on Martian moons' exploration in the New York Times. [Link][2020/07/26]

Sugahara is featured in JSPS(LEADER) HP. [Link][2020/07/26]

Sakatani, Matsuoka, and Noguchi’s co-authored paper ‘Highly porous nature of a primitive asteroid revealed by thermal imaging’ is published in Nature. [Link][2020/06/22]

Kanamaru, Sakatani, Matsuoka, and Noguchi’s co-authored paper ‘Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution’ is published in Science. [Link][2020/06/22]

The M2 challenge project has been selected for “the Student Project Support 2019” of UTokyo Foundation. [Twitter][2020/03/18]

Hyodo's paper & MMX is featured on cosmos blog. [Link][2020/02/06]

Hyodo's paper is featured on Yahoo website. [Link][2020/01/20]

Hyodo's article "Transport of impact ejecta from Mars to its moons as a means to reveal Martian history" on Sci. Rep. is published online. [Link][2020/01/06]


MMX is featured in NHK's Science Zero (11:30pm-12:00am, November 10). Tomo Usui and Ryuki Hyodo comment on the scientific significance of MMX. [Link][2019/11/3]

Sugahara, H. is featured in ISAS newsletter. [Link][2019/10/30]

Moon to Mars Challenge webpage launched! [facebook] [twitter][2019/10/23]

Usui's co-authored paper is featured in ISAS's Cosmos blog. [Link] [2019/9/11]

MMX mission is featured in the Mainichi newspaper (September 5th, 2019). Usui comments on the scientific significance of MMX. [Link] [2019/9/05]

Usui, T. is featured in ISAS newsletter. [Link] [2019/6/26]

Noguchi, R. is selected as a member of the 61th Japanese Antarctic Research Expedition. [Link] [2019/6/21]

Noguchi's article on Yuseijin is published online. [Link] [2019/6/3]

Usui, T., Sakatani, N., Noguchi, R., Matsuoka, M., Uemura, C., Kajitani, I. and Takano, A. join the JpGU Meeting 2019 (Chiba, Japan) [Link] Noguchi, R. presides over the planetary volcanology session. [Link] [gallery] Usui T. presents the Japanese Mars Exploration. [Link] [2019/5/26-30]

Usui T. presents the Japanese Mars Exploration Program at the American School in Japan @asij Space Club. [Link] [2019/5/21]

Hayabusa2 initial science reports (Sakatani, N., Noguchi, R., Matsuoka, M., and Shimaki, Y. are participated in as coauthors) are published in the Science Magazine [Publications] [2019/3/20]

Usui, T., Sakatani, N., Noguchi, R., and Matsuoka, M. join the 50th Lunar and Planetary Science Conference(Woodlands, Texas, USA). [Link] [gallery] [2019/3/18-22]

The 1st International Workshop for Aquaplanetology is held at ELSI [Link] [2019/3/4-6]

The 1st International Winter School for Aquaplanetology is held at Koyasan University [Link] [2019/2/28--3/3]

The 20th Symposium on Planetary Sciences is held at Tohoku University, Japan [Link] [2019/2/18-21]

Usui's article on geology and mineralogy of water on Mars is published in a textbook [Link] [2019/3/11]

Usui joins a conference for the international space exploration [Link] [2019/3/12]

Usui gives a public talk about the exploration on Mars [Link] [2019/3/1]

Sakatani and Shimaki reported results of TIR on Hayabusa2 in TherMoPS III, Hungary [Link] [gallery] [2019/2/25]

Usui gave a public lecture about the history of water on Mars at 2018 JpGU winter school for high school students [YouTube] [2019/2/3]

Noguchi and Shimaki's web article on nomenclature of Ryugu is now available. [2019/1/21] [Link]


Noguchi's paper on an analog experiment for rootless eruption is published in Earth, Planets and Space. [2018/12/27] [Link]

The 2nd Aqua Planetology Meeting was held at Kobe University, Kobe. [2018/12/22-23] [Link]

The 14th Impact Research Meeting was held at Center for Planetary Science, Kobe. [2018/12/17-19]

The 2nd IRSG & M-scale Joint Meeting and 11th HJST were held at Ryugujo Spa Hotel Mikazuki in Kisarazu, Chiba. [2018/12/2-4]

The Usui Research Group website launched! [2018/11/26]