Frontier of organic astrochemistry: Exploring primordial organic molecular evolution in the Solar System

• Project/Area Number: 21KK0062
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 17:Earth and planetary science and related fields
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: 高野 淑識 国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), センター長 (80399815)
• Co-Investigator(Kenkyū-buntansha): 古賀 俊貴 国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), ポストドクトラル研究員 (30912034) ; 坂井 三郎 国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), 主任研究員 (90359175)
• Project Period (FY): 2021-10-07 – 2026-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000); Fiscal Year 2025: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2024: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2023: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
• Keywords: 炭素質小惑星リュウグウ / 炭素質小惑星ベヌー / 有機分子の化学進化 / 地球帰還試料・初期分析 / 同位体質量分析法 / 小惑星リュウグウ / アミノ酸 / キラリティ / 核酸塩基 / 可溶性有機分子群 / 地球帰還粒子 / 元素組成 / 物質科学的性状 / ピリミジン塩基 / プリン塩基 / 有機宇宙化学 / 分子進化 / 高分解能分子レベル分析 / 非破壊・破壊分析 / イメージング分析

Outline of Research at the Start

本研究代表者は、「はやぶさ２計画」の試料採取チーム（サンプラー）メンバーであり、小惑星リュウグウ試料帰還を成功させたメンバーの一人である。また、初期分析の有機分析グループメンバーとして、試料の初期分析（2021年6月開始）を担当しており、アメリカ航空宇宙局・ゴダード宇宙飛行センターの招聘研究員を兼務している。本国際共同研究の学術的独自性は、「はやぶさ２（日本）」および「オシリスレックス（米国）」（2023年帰還予定）計画を双方相乗的に最大化し、２つの太陽系始原天体での水ー有機物ー鉱物の相互作用の解明を含め、有機分子レベルの初生的な分子進化を読み解くことである。

Outline of Annual Research Achievements

2024年は、小惑星リュウグウの物質科学的な分析に関して、2つの大きな成果発表を行った。まず、水溶性有機分子群の始原的な水質変成の痕跡証拠を報告した。新たに同定されたグリコール酸、乳酸、グリセリン酸、シュウ酸、コハク酸などの低分子ヒドロキシ酸（HO-R-COOH）とジカルボン酸（HOOC-R-COOH）は、リュウグウの2つのタッチダウン地点からのサンプルで優勢であった。親水性分子のプロファイルは、2つのサンプリング地点間でppbからppmのオーダーで類似した傾向を示していた。ピルビン酸、ジヒドロキシ酸やトリカルボン酸も同定された。これらは、始原的なTCA（トリカルボン酸）サイクルなど、分子進化に関連する生化学的に重要な中間体である。ジカルボン酸プロファイルにおけるケト-エノール互変異性中のマロン酸の存在によって明らかにされたように、小惑星リュウグウがかつて水質変成を受けた証拠を発見した。
次に、リュウグウに含まれるブロイネル石（Breunnerite）などのマグネシウム鉱物や始原的なブライン（brine）の精密な化学分析を行うことで、その組成や含有量などを明らかにした。小惑星リュウグウは、地球が誕生する以前の太陽系全体の化学組成を保持する、最も始原的な天体の一つであり、これまでさまざまな研究グループの分析により、鉱物・有機物と水が関わる水質変成が明らかとなってきましたが、「ブライン（brine）の化学組成とイオン性成分の沈殿」に関する履歴は、不明であった。そこで2024年は、微小な炭酸塩鉱物の単離・同定と陽イオン成分の溶媒抽出を行い、精密な化学組成分析を行い、リュウグウに含まれる鉱物と最後に接触した水の陽イオン組成は、ナトリウムイオンに富んでいることを示した。マグネシウムに非常に富む鉱物が複数存在しており、これらが水からマグネシウムを除去した際の沈殿順序を報告した。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

Nature Communications誌やNature Astronomy誌など総合学術誌への研究成果の発表を行っており、順調に進めている。

Strategy for Future Research Activity

現在、本研究代表者は、リュウグウ・リファレンス・プロジェクト（RRP: Ryugu Reference Project）の共同PIを務めている。これは、リュウグウのサンプルを用いて太陽系の元素・同位体組成の国際的な基準値を作成することを目的とした国際プロジェクトであり、これらの基準値は、学術資産として様々な科学分野で利用されると期待されている。さらに、はやぶさ2プロジェクトで得られた科学知見について、米国NASAの主導するOSIRIS-REx（Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorerの略称）による小惑星ベンヌ（Bennu）との比較考察の意義は大きく、国際機関と連携しつつ、両者の水ー有機物ー鉱物相互作用に関する小惑星史の理解に向けて、鋭意進めていく予定である。

Research Products

• [Int'l Joint Research] NASA/GSFC/カリフォリニア工科大学（Caltech）/ブラウン大学(米国)
• [Int'l Joint Research] スイス連邦工科大学（ETH Zurich）(スイス)
• [Int'l Joint Research] CNRS/グルノーブル大学(フランス)
• [Int'l Joint Research] マックスプランク研究所（MPI）/ミュンヘン工科大学(ドイツ)
• [Int'l Joint Research] ロンドン大学/英国自然史博物館(英国)
• [Int'l Joint Research]
• [Int'l Joint Research] アメリカ航空宇宙局（NASA）/カリフォルニア工科大学/カーネギー研究所(米国)
• [Int'l Joint Research] ドイツ研究センターヘルムホルツセンター/マックスプランク研究機構（MPI）/ミュンヘン工科大学(ドイツ)
• [Int'l Joint Research] スイス工科大学（ETH）(スイス)
• [Int'l Joint Research] ロンドン大学/英国自然史博物館/インペリアルカレッジロンドン大学(英国)
• [Int'l Joint Research] オーストラリア国立大学（ANU）/カーティン大学(オーストラリア)
• [Int'l Joint Research]
• [Int'l Joint Research] NASA Goddard Space Flight Center/California Institute of Technology/University of Arizona(米国)
• [Int'l Joint Research] University; Grenoble Alpes/University; Paris-Saclay/University; Aix-Marseille(フランス)
• [Int'l Joint Research] Helmholtz Munich/Max Planck Institute/Ludwig-Maximilians-University(ドイツ)
• [Int'l Joint Research] アメリカ航空宇宙局（NASA）(米国)
• [Journal Article] Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu (2025)
  • Author(s): Glavin Daniel P.、Dworkin Jason P.、Yasuhiro Oba (62人中45番目）et al.
  • Journal Title: Nature Astronomy Volume: 9 Issue: 2 Pages: 199-210
  • DOI: 10.1038/s41550-024-02472-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Compound-Specific Carbon and Nitrogen Isotopic Analyses of Underivatized Pyrimidine and Purine Nucleobases (2025)
  • Author(s): Koga Toshiki、Takano Yoshinori、Ogawa Nanako O.、Hollingsworth Emily H.、Oba Yasuhiro、Ohkouchi Naohiko
  • Journal Title: ACS Earth and Space Chemistry Volume: 9 Issue: 3 Pages: 424-432
  • DOI: 10.1021/acsearthspacechem.4c00110
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 炭素質小惑星リュウグウと太陽系物質科学： 軽元素および分子レベル解析法の高度化と今後の展望 (2025)
  • Author(s): 高野淑識，小川奈々子，吉村寿紘，古賀俊貴，坂井三郎，大河内直彦，大場康弘，古川善博
  • Journal Title: 環境と測定技術 Volume: 52 Pages: 41-47
  • Open Access
• [Journal Article] Breunnerite grain and magnesium isotope chemistry reveal cation partitioning during aqueous alteration of asteroid Ryugu (2024)
  • Author(s): Yoshimura Toshihiro、Araoka Daisuke、Naraoka Hiroshi、Hikaru Yabuta(18番目)、ほか32名
  • Journal Title: Nature Communications Volume: 15 Issue: 1 Pages: 6809-6809
  • DOI: 10.1038/s41467-024-50814-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu (2024)
  • Author(s): Takano Yoshinori、Naraoka Hiroshi、Dworkin Jason P.、Koga Toshiki、Sasaki Kazunori、Hikaru Yabuta (代表者は26番目)、ほか37名 4.巻 15
  • Journal Title: Nature Communications Volume: 15 Issue: 1 Pages: 5708-5708
  • DOI: 10.1038/s41467-024-49237-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Earth atmosphere-like bulk nitrogen isotope composition obtained by stepwise combustion analyses of Ryugu return samples. (2024)
  • Author(s): Hashizume K, Ishida A, Chiba A, Okazaki R, et al.
  • Journal Title: Meteoritics and Planetary Science Volume: - Issue: 8 Pages: 2117-2133
  • DOI: 10.1111/maps.14175
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Enantioselective three-dimensional high-performance liquid chromatographic determination of amino acids in the Hayabusa2 returned samples from the asteroid Ryugu (2024)
  • Author(s): Furusho Aogu、Ishii Chiharu、Akita Takeyuki、Oyaide Mai、Mita Masashi、Hikaru Yabuta(代表者は 55番目)、ほか67名
  • Journal Title: Journal of Chromatography Open Volume: 5 Pages: 100134-100134
  • DOI: 10.1016/j.jcoa.2024.100134
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Enantiomer-Specific Stable Carbon and Nitrogen Isotopic Analyses of Underivatized Individual <scp>l</scp>- and <scp>d</scp>-Amino Acids by HPLC + HPLC Separation and Nano-EA/IRMS (2024)
  • Author(s): Sun, Y., Blattmann, T.M., Takano, Y., Ogawa, N.O., Isaji, Y., Ishikawa, N.F., and Ohkouchi, N.
  • Journal Title: Analytical Chemistry Volume: 96 Issue: 47 Pages: 18664-18671
  • DOI: 10.1021/acs.analchem.4c02851
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Abundant extraterrestrial purine nucleobases in the Murchison meteorite: Implications for a unified mechanism for purine synthesis in carbonaceous chondrite parent bodies (2024)
  • Author(s): Koga, T., Takano, Y., Oba, Y., Naraoka, H., and Ohkouchi, N.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 365 Pages: 253-265
  • DOI: 10.1016/j.gca.2023.10.024
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Curation protocol of Phobos sample returned by Martian Moons eXploration (2024)
  • Author(s): Fukai R., Usui T., Fujiya W., Takano Y., Bajo K., Beck A., Bonato E., Chabot N. L., Furukawa Y., Genda H., Hibiya Y., Jourdan F., Kleine T., Koike M., Matsuoka M., Miura Y.N., Moynier F., Okazaki R., Russell S.S.、Sumino H., Zolensky M.E., Sugahara H., Tachibana S., Sakamoto K., Abe M., Cho Y., Kuramoto K.
  • Journal Title: Meteoritics & Planetary Science Volume: 59 Issue: 2 Pages: 321-337
  • DOI: 10.1111/maps.14121
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nitrogen K-edge X-ray adsorption near-edge structure spectroscopy of chemically adsorbed ammonia gas on clay minerals and the 15N/14N-nitrogen isotopic fractionation (2024)
  • Author(s): Sugahara H., Yoshimura T., Tamenori, Y., Takano, Y., Ogawa N. O., Chikaraishi Y., Ohkouchi N.
  • Journal Title: Analytical Sciences Volume: 40 Issue: 4 Pages: 781-789
  • DOI: 10.1007/s44211-023-00503-5
  • Peer Reviewed / Open Access
• [Journal Article] Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu (2023)
  • Author(s): Naraoka Hiroshi、Takano Yoshinori、Dworkin Jason P.、Oba Yasuhiro、Hamase Kenji、Furusho Aogu、Ogawa Nanako O.、Hashiguchi Minako、Fukushima Kazuhiko、Aoki Dan ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 9033-9033
  • DOI: 10.1126/science.abn9033
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution (2023)
  • Author(s): Okazaki Ryuji、Marty Bernard、Busemann Henner、Hashizume Ko、Gilmour Jamie D.、Meshik Alex、Yada Toru、Kitajima Fumio、Broadley Michael W.、Byrne David ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 431-431
  • DOI: 10.1126/science.abo0431
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium (2023)
  • Author(s): Zeichner S. S., Aponte J. C., Bhattacharjee S., Dong G., Hofmann A. E., ..., Tachibana S., et al
  • Journal Title: Science Volume: 382 Issue: 6677 Pages: 1411-1416
  • DOI: 10.1126/science.adg6304
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The noble gas and nitrogen relationship between Ryugu and carbonaceous chondrites (2023)
  • Author(s): Broadley M.W.、Byrne D.J.、Fri E.、et al.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 345 Pages: 62-74
  • DOI: 10.1016/j.gca.2023.01.020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Extraterrestrial amino acids and amines identified in asteroid Ryugu samples returned by the Hayabusa2 mission (2023)
  • Author(s): Parker Eric T.、McLain Hannah L.、Glavin Daniel P.、Dworkin Jason P.、Elsila Jamie E.、Aponte Jose C.、Naraoka Hiroshi (30著者のうち7番目)、、、、、Tsuda Yuichi、Terui Fuyuto、Noguchi Takaaki、Okazaki Ryuji、Watanabe Sei-ichiro、Nakamura Tomoki
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 347 Pages: 42-57
  • DOI: 10.1016/j.gca.2023.02.017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] PAHs, hydrocarbons, and dimethylsulfides in Asteroid Ryugu samples A0106 and C0107 and the Orgueil (CI1) meteorite (2023)
  • Author(s): Aponte Jose C.、Dworkin Jason P.、Glavin Daniel P.、Elsila Jamie E.、Parker Eric T.、McLain Hannah L.、Naraoka Hiroshi (32著者のうち7番目)、、、、、、Tsuda Yuichi、Watanabe Sei-ichiro、The Hayabusa2-initial-analysis SOM team、The Hayabusa2-initial-analysis core team
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 28-28
  • DOI: 10.1186/s40623-022-01758-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Uracil in the carbonaceous asteroid (162173) Ryugu (2023)
  • Author(s): Oba Yasuhiro、Koga Toshiki、Takano Yoshinori、Ogawa Nanako O.、Ohkouchi Naohiko、Sasaki Kazunori、Sato Hajime、Glavin Daniel P.、Dworkin Jason P. ... Yabuta Hikaru ... Hayabusa2-initial-analysis SOM team
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 1292-1292
  • DOI: 10.1038/s41467-023-36904-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu (2023)
  • Author(s): Hashiguchi, Minako; Aoki, Dan; Fukushima, Kazuhiko and 51 more (Yabuta, H.は34番目)
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 73-73
  • DOI: 10.1186/s40623-023-01792-w
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu asteroid sample return provides a natural laboratory for primordial chemical evolution (2023)
  • Author(s): Oba, Y., Takano, Y., Dworkin, J.P., and Naraoka, H.
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 3107-3107
  • DOI: 10.1038/s41467-023-38518-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu (2023)
  • Author(s): Yoshimura, Toshihiro; Takano, Yoshinori; Naraoka, Hiroshi and 84 more (Yabuta, H.は26番目)
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 5284-5284
  • DOI: 10.1038/s41467-023-40871-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Soluble organic matter Molecular atlas of Ryugu reveals cold hydrothermalism on C-type asteroid parent body (2023)
  • Author(s): Schmitt-Kopplin, Philippe; Hertkorn, Norbert; Harir, Mourad and 56 more (Yabuta, H.は15番目)
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 6525-6525
  • DOI: 10.1038/s41467-023-42075-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A curation for uncontaminated Hayabusa2-returned samples in the extraterrestrial curation center of JAXA: from the beginning to present day (2023)
  • Author(s): Yada Toru、Abe Masanao、Nishimura Masahiro、...、Tachibana Shogo、Usui Tomohiro
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 170-170
  • DOI: 10.1186/s40623-023-01924-2
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Investigating the impact of x‐ray computed tomography imaging on soluble organic matter in the Murchison meteorite: Implications for Bennu sample analyses (2023)
  • Author(s): Glavin, D.P., Eckley, S.A., Aponte, J.C., Berger, E.L., Burton, A.S., Dworkin, J.P., Elsila, J.E., Ferguson, F.T., Furukawa, Y., Graham, H.V., Koga, T., Liss, M., McLain, H.L., Naraoka, H., Oba, Y., Parker, E.T., Righter, K., Schmitt-Kopplin, P., Simkus, D.N., Takano, Y., Connolly, H.C.Jr., and Lauretta, D.S. et al.
  • Journal Title: Meteoritics & Planetary Science Volume: 59 Issue: 1 Pages: 105-133
  • DOI: 10.1111/maps.14111
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Soluble organic molecules in asteroid Ryugu (2023)
  • Author(s): 古賀 俊貴
  • Journal Title: Viva Origino Volume: 51 Issue: 4 Pages: 6
  • DOI: 10.50968/vivaorigino.51_6
  • ISSN: 0910-4003, 1346-6933
  • Peer Reviewed
• [Journal Article] First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu (2022)
  • Author(s): Okazaki Ryuji、Miura Yayoi N.、Takano Yoshinori、Sawada Hirotaka、Sakamoto Kanako、Yada Toru、Yamada Keita、Kawagucci Shinsuke、Matsui Yohei、Hashizume Ko ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 46 Pages: 2375-2548
  • DOI: 10.1126/sciadv.abo7239
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites (2022)
  • Author(s): Oba Yasuhiro、Takano Yoshinori、Furukawa Yoshihiro、Koga Toshiki、Glavin Daniel P.、Dworkin Jason P.、Naraoka Hiroshi
  • Journal Title: Nature Communications Volume: 13 Issue: 1 Pages: 2008-2008
  • DOI: 10.1038/s41467-022-29612-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu particles found outside the Hayabusa2 sample container (2022)
  • Author(s): Nakato Aiko、Inada Shiori、Furuya Shizuho、Nishimura Masahiro、Yada Toru、Abe Masanao、Usui Tomohiro、Yoshida Hideto、Mikouchi Takashi、Sakamoto Kanako、Yano Hajime、Miura Yayoi N.、Takano Yoshinori、Yamanouchi Shinji、Okazaki Ryuji、Sawada Hirotaka、Tachibana Shogo
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 56 Issue: 6 Pages: 197-222
  • DOI: 10.2343/geochemj.GJ22017
  • ISSN: 0016-7002, 1880-5973
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 『火の鳥「はやぶさ」未来編』その26 ~リュウグウ帰還試料のキュレーション. (2022)
  • Author(s): 矢田 達, 安部 正真, 岡田 達明, 中藤 亜衣子, 与賀田 佳澄, 宮﨑 明子, 西村 征洋, 坂本 佳奈子ほか
  • Journal Title: 日本惑星科学会誌 Volume: 31 Pages: 153-164
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth (2022)
  • Author(s): Tachibana S.、Abe M. et al.
  • Journal Title: Science Volume: 375 Issue: 6584 Pages: 1011-1016
  • DOI: 10.1126/science.abj8624
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Environmental assessment in the prelaunch phase of Hayabusa2 for safety declaration of returned samples from the asteroid (162173) Ryugu: Background monitoring and risk management during development of the sampler system (2022)
  • Author(s): Sakamoto, K., Takano, Y., Sawada, H., Okazaki, R., Noguchi, T., Uesugi, M., Yano, H., Yada, T., Abe, M. and Tachibana, S.
  • Journal Title: Earth, Planets and Space Volume: - Issue: 1
  • DOI: 10.1186/s40623-022-01628-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu (2021)
  • Author(s): Yada Toru、Abe Masanao、et al.
  • Journal Title: Nature Astronomy Volume: 6 Issue: 2 Pages: 214-220
  • DOI: 10.1038/s41550-021-01550-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith (2021)
  • Author(s): Kebukawa Yoko、Zolensky Michael. E.、Goodrich Cyrena A.、Ito Motoo、Ogawa Nanako O.、Takano Yoshinori、Ohkouchi Naohiko、Kiryu Kento、Igisu Motoko、Shibuya Takazo、Marcus Matthew A.、Ohigashi Takuji、Martinez James、Kodama Yu、Shaddad Muawia H.、Jenniskens Peter、Sandford Scott
  • Journal Title: Meteoritics &amp; Planetary Science Volume: 56 Issue: 7 Pages: 1311-1327
  • DOI: 10.1111/maps.13713
  • NAID: 120007179737
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Assessing the debris generated by the small carry-on impactor operated from the Hayabusa2 mission (2021)
  • Author(s): Ito Motoo、Takano Yoshinori、Kebukawa Yoko、Ohigashi Takuji、Matsuoka Moe、Kiryu Kento、Uesugi Masayuki、Nakamura Tomoki、Yuzawa Hayato、Yamada Keita、Naraoka Hiroshi、Yada Toru、Abe Masanao、Hayakawa Masahiko、Saiki Takanao、Tachibana Shogo、Hayabusa II Project Team
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 55 Issue: 4 Pages: 223-239
  • DOI: 10.2343/geochemj.2.0632
  • NAID: 130008119463
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Analytical protocols for Phobos regolith samples returned by the Martian Moons eXploration (MMX) mission (2021)
  • Author(s): Fujiya Wataru、Furukawa Yoshihiro、Sugahara Haruna、Koike Mizuho、Bajo Ken-ichi、Chabot Nancy L.、Miura Yayoi N.、Moynier Frederic、Russell Sara S.、Tachibana Shogo、Takano Yoshinori、Usui Tomohiro、Zolensky Michael E.
  • Journal Title: Earth, Planets and Space Volume: 73 Issue: 1 Pages: 130-130
  • DOI: 10.1186/s40623-021-01438-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] イオンペアクロマトグラフィー／電子スプレーイオン化質量分析法（LC/ESI-MS）による短鎖ペプチド類のマススペクトル解析 [技術論文]. (2021)
  • Author(s): 高野 淑識, 大場 康弘, 大河内 直彦
  • Journal Title: Researches in Organic Geochemistry Volume: 37 Pages: 15-43
  • Peer Reviewed / Open Access
• [Presentation] Organic molecular evolution in the carbonaceous asteroid Ryugu （有機分子の化学進化と炭素質小惑星リュウグウ） (2025)
  • Author(s): 高野 淑識
  • Organizer: 生命の起原・進化学会
  • Invited
• [Presentation] 分子キラリティと太陽系物質科学の展望 (2025)
  • Author(s): 高野 淑識
  • Organizer: 自然科学研究機構・分子研研究会「キラリティが関連する動的現象」
  • Invited
• [Presentation] Primordial aqueous alteration signatures in the carbonaceous asteroid Ryugu: Carboxylic acids and the keto-enol tautomerism. (2024)
  • Author(s): Y. Takano, J.P. Dworkin, H. Naraoka, Hayabusa2-initial-analysis SOM team
  • Organizer: American Geophysical Union (AGU) 2024
  • Int'l Joint Research
• [Presentation] 太陽系始原物質の有機分子と化学進化に関する研究：これからの新しい展望【受賞記念講演】 (2024)
  • Author(s): 高野 淑識
  • Organizer: 日本有機地球化学会
  • Invited
• [Presentation] 小惑星リュウグウの水質変成と有機分子指標の展望 (2024)
  • Author(s): 高野 淑識, ジェイソン P.ドワーキン, 奈良岡 浩, はやぶさ2初期分析 可溶性有機物分析チーム
  • Organizer: 日本地球化学会
• [Presentation] On the chemical evolution of the carbonaceous asteroid Ryugu revealed by targeted and non-targeted high-resolution mass spectrometry for pristine organic molecules. (2024)
  • Author(s): Yoshinori Takano, Jason P. Dworkin, Hiroshi Naraoka, Hayabusa2-initial-analysis SOM team
  • Organizer: The 72nd Annual Conference on Mass Spectrometry
  • Invited
• [Presentation] Carbonaceous asteroid Ryugu is a natural laboratory for primordial chemical evolution (2024)
  • Author(s): Yoshinori Takano
  • Organizer: COPL (Centre for Origin and Prevalence of Life), ETH Zurich
  • Int'l Joint Research / Invited
• [Presentation] Organic Molecular Signatures of Aqueous Alteration at Ryugu (2024)
  • Author(s): Y. Takano, H. Naraoka, J. P. Dworkin et al.
  • Organizer: Solar System symposium in Sapporo 2024
  • Int'l Joint Research
• [Presentation] Hayabusa2: cutting edge technologies and future prospects (2023)
  • Author(s): Yoshinori Takano
  • Organizer: Frontier of Understanding Earth's Interior and Dynamics
  • Int'l Joint Research / Invited
• [Presentation] Nucleobases in Carbonaceous Meteorites and Returned Samples from Asteroid (162173) Ryugu (2023)
  • Author(s): Y. OBA, T. KOGA, Y. TAKANO et al.
  • Organizer: Solar System symposium in Sapporo 2023
  • Int'l Joint Research
• [Presentation] 火星衛星探査計画MMX・SAWTによる帰還試料の初期記載の検討 (2022)
  • Author(s): 深井 稜汰, 臼井 寛裕, 藤谷 渉, 高野 淑識, 馬上 謙一, 小池 みずほ, 三浦 弥生ほか
  • Organizer: 日本地球化学会年会
• [Presentation] 高速液体クロマトグラフ高分解能質量分析法による炭素質隕石中の尿素分子群の特徴とその意義 (2022)
  • Author(s): 古賀 俊貴, 高野 淑識, 大場 康弘, 古川 善博, 奈良岡 浩
  • Organizer: 日本地球化学会年会
• [Presentation] 火星衛星探査計画MMX・SAWT による帰還試料の 初期記載・初期分析の検討 (2022)
  • Author(s): 深井 稜汰, 臼井 寛裕, 藤谷 渉, 高野 淑識, 馬上 謙一, 小池 みずほ, 三浦 弥生ほか
  • Organizer: 日本惑星科学会年会
• [Presentation] Isotopic evidence of interstellar contributions to formation of polycyclic aromatic hydrocarbons from the Ryugu asteroid (2022)
  • Author(s): Zeichner, S., et al.
  • Organizer: Symposium on Next Generation Astrochemistry
  • Int'l Joint Research
• [Presentation] Molecular growth pattern of soluble CHN compounds from Ryugu (2022)
  • Author(s): Orthous- Daunay, F. R. et al.
  • Organizer: 53rd Lunar and Planetary Science Conference (LPSC)
  • Int'l Joint Research
• [Presentation] Soluble Organic Matter (SOM) analysis of the Hayabusa2 samples: The first results (2021)
  • Author(s): Hiroshi Naraoka, Yoshinori Takano, Jason P. Dworkin, HY2 SOM team members, HY2 IA-core members
  • Organizer: Hayabusa 2021 Symposium (8th ISAS Symposium of the Solar System Materials)
  • Int'l Joint Research / Invited
• [Presentation] CNHOS contents with their isotopic compositions and preliminary organic profiles from the Hayabusa2 samples (2021)
  • Author(s): Yoshinori Takano, Hiroshi Naraoka, Jason P. Dworkin, HY2 SOM team members, HY2 IA-core members
  • Organizer: Hayabusa 2021 Symposium (8th ISAS Symposium of the Solar System Materials)
  • Int'l Joint Research
• [Presentation] 15Nに富むアミノ酸の分子レベル安定窒素同位体比測定における分析精度の検証 (2021)
  • Author(s): 菅原 春菜・高野 淑識・滝沢 侑子・力石 嘉人
  • Organizer: 日本有機地球化学会
• [Remarks] 小惑星ベヌーにアミノ酸など多くの生体関連分子が存在
  • URL: https://www.jamstec.go.jp/j/about/press_release/20250130_2/
• [Remarks] Life’s building blocks in Bennu samples
  • URL: https://www.jamstec.go.jp/e/jamstec_news/20250220/
• [Remarks] The great voyage toward the Solar System
  • URL: https://www.horiba.com/int/company/about-horiba/horiba-talk/hayabusa2-special-interview/
• [Remarks] NASA / GCA (The Goddard Center for Astrobiology)
  • URL: https://astrobiology.gsfc.nasa.gov/team-members.html
• [Remarks] 東洋経済オンライン特集記事
  • URL: https://toyokeizai.net/articles/-/715181
• [Remarks] JAMSTEC 海洋研究開発機構 ＼海と地球の研究所／
  • URL: https://twitter.com/JAMSTEC_PR/status/1747923556246364212
• [Remarks] 講談社ブルーバックス：リュウグウは有機宇宙化学のリアルな実験室
  • URL: https://gendai.media/articles/-/116126
• [Remarks] 小惑星リュウグウ：地球と海が出来る前の姿／多機関連携のシナジーが読み解いた記録（15:10～）
  • URL: https://www.youtube.com/watch?v=sUKmMk9wK_A
• [Remarks] 【プレスリリース】小惑星リュウグウから始原的な「塩（Salt）」と有機硫黄分子群を発見
  • URL: https://www.jamstec.go.jp/j/about/press_release/20230918/
• [Remarks] 炭素質小惑星(162173)リュウグウの試料中の可溶性有機分子
  • URL: https://www.jamstec.go.jp/j/about/press_release/20230224/
• [Remarks] 小惑星リュウグウに核酸塩基とビタミンが存在
  • URL: https://www.jamstec.go.jp/j/about/press_release/20230322/
• [Remarks] 小惑星探査機「はやぶさ２」初期分析 揮発性成分分析
  • URL: https://www.jaxa.jp/press/2022/10/20221021-2_j.html
• [Remarks] 炭素質隕石から遺伝子の主要核酸塩基5種すべてを検出
  • URL: https://www.hokudai.ac.jp/news/2022/04/5-8.html
• [Remarks] 「はやぶさ2」サンプル収納コンテナの外に小惑星リュウグウ粒子を発見
  • URL: https://www.s.u-tokyo.ac.jp/ja/press/2022/8113/
• [Remarks] ISAS/JAXA プレスリリース
  • URL: https://www.isas.jaxa.jp/topics/002942.html
• [Remarks] ISAS/JAXA プレスリリース
  • URL: https://www.isas.jaxa.jp/topics/002891.html
• [Remarks] アメリカ航空宇宙局（NASA）/ GSFC
  • URL: https://astrobiology.gsfc.nasa.gov/team-members.html
• [Remarks] JAMSTECトピックス：JAXA「はやぶさ２プロジェクト」から感謝状の授与
  • URL: https://www.jamstec.go.jp/j/jamstec_news/20220124/
• [Remarks] JAMSTECトピックス：はやぶさ２サンプラーチーム
  • URL: https://www.jamstec.go.jp/j/jamstec_news/20220221/