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Kimura Y, Kato T, Anada S, Yoshida R, Yamamoto K, Tanigaki T, Akashi T, Kasai H, Kurosawa K, Nakamura T, Noguchi T, Sato M, Matsumoto T, Morita T, Kikuiri M, Amano K, Kagawa E, Yada T, Nishimura M, Nakato A, Miyazaki A, Yogata K, Abe M, Okada T, Usui T, Yoshikawa M, Saiki T, Tanaka S, Terui F, Nakazawa S, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Watanabe SI, Tsuda Y, Tachibana S. Nonmagnetic framboid and associated iron nanoparticles with a space-weathered feature from asteroid Ryugu. Nat Commun 2024; 15:3493. [PMID: 38684653 PMCID: PMC11059182 DOI: 10.1038/s41467-024-47798-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 04/11/2024] [Indexed: 05/02/2024] Open
Abstract
Extraterrestrial minerals on the surface of airless Solar System bodies undergo gradual alteration processes known as space weathering over long periods of time. The signatures of space weathering help us understand the phenomena occurring in the Solar System. However, meteorites rarely retain the signatures, making it impossible to study the space weathering processes precisely. Here, we examine samples retrieved from the asteroid Ryugu by the Hayabusa2 spacecraft and discover the presence of nonmagnetic framboids through electron holography measurements that can visualize magnetic flux. Magnetite particles, which normally provide a record of the nebular magnetic field, have lost their magnetic properties by reduction via a high-velocity (>5 km s-1) impact of a micrometeoroid with a diameter ranging from 2 to 20 μm after destruction of the parent body of Ryugu. Around these particles, thousands of metallic-iron nanoparticles with a vortex magnetic domain structure, which could have recorded a magnetic field in the impact event, are found. Through measuring the remanent magnetization of the iron nanoparticles, future studies are expected to elucidate the nature of the nebular/interplanetary magnetic fields after the termination of aqueous alteration in an asteroid.
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Affiliation(s)
- Yuki Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japan.
| | - Takeharu Kato
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Satoshi Anada
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Ryuji Yoshida
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Kazuo Yamamoto
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, 456-8587, Japan
| | - Toshiaki Tanigaki
- Research & Development Group, Hitachi, Ltd., Hatoyama, Saitama, 350-0395, Japan
| | - Tetsuya Akashi
- Research & Development Group, Hitachi, Ltd., Hatoyama, Saitama, 350-0395, Japan
| | - Hiroto Kasai
- Research & Development Group, Hitachi, Ltd., Hatoyama, Saitama, 350-0395, Japan
| | - Kosuke Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino, 275-0016, Japan
- Department of Human Environmental Science, Graduate school of Human Development and Environment, Kobe University, Kobe, 657-8501, Japan
| | | | | | - Masahiko Sato
- The University of Tokyo, Tokyo, 113-0033, Japan
- ISAS/JAXA, Sagamihara, 252-5210, Japan
| | | | | | | | - Kana Amano
- Tohoku University, Sendai, 980-8578, Japan
| | | | - Toru Yada
- ISAS/JAXA, Sagamihara, 252-5210, Japan
| | | | - Aiko Nakato
- National Institute of Polar Research, Tashikawa, 190-8518, Japan
| | | | | | | | | | | | | | | | | | - Fuyuto Terui
- Kanagawa Institute of Technology, Atsugi, 243-0292, Japan
| | | | | | | | - Hikaru Yabuta
- Hiroshima University, Higashi-Hiroshima, 739-8526, Japan
| | | | | | | | | | - Shogo Tachibana
- The University of Tokyo, Tokyo, 113-0033, Japan
- ISAS/JAXA, Sagamihara, 252-5210, Japan
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Matsumoto M, Matsuno J, Tsuchiyama A, Nakamura T, Enokido Y, Kikuiri M, Nakato A, Yasutake M, Uesugi K, Takeuchi A, Enju S, Okumura S, Mitsukawa I, Sun M, Miyake A, Haruta M, Igami Y, Yurimoto H, Noguchi T, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Zolensky M, Yada T, Nishimura M, Miyazaki A, Yogata K, Abe M, Okada T, Usui T, Yoshikawa M, Saiki T, Tanaka S, Terui F, Nakazawa S, Watanabe SI, Tsuda Y. Microstructural and chemical features of impact melts on Ryugu particle surfaces: Records of interplanetary dust hit on asteroid Ryugu. Sci Adv 2024; 10:eadi7203. [PMID: 38241366 PMCID: PMC10798560 DOI: 10.1126/sciadv.adi7203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 12/21/2023] [Indexed: 01/21/2024]
Abstract
The Hayabusa2 spacecraft delivered samples of the carbonaceous asteroid Ryugu to Earth. Some of the sample particles show evidence of micrometeoroid impacts, which occurred on the asteroid surface. Among those, particles A0067 and A0094 have flat surfaces on which a large number of microcraters and impact melt splashes are observed. Two impact melt splashes and one microcrater were analyzed to unveil the nature of the objects that impacted the asteroid surface. The melt splashes consist mainly of Mg-Fe-rich glassy silicates and Fe-Ni sulfides. The microcrater trapped an impact melt consisting mainly of Mg-Fe-rich glassy silicate, Fe-Ni sulfides, and minor silica-rich glass. These impact melts show a single compositional trend indicating mixing of Ryugu surface materials and impactors having chondritic chemical compositions. The relict impactor in one of the melt splashes shows mineralogical similarity with anhydrous chondritic interplanetary dust particles having a probable cometary origin. The chondritic micrometeoroids probably impacted the Ryugu surface during its residence in a near-Earth orbit.
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Affiliation(s)
- Megumi Matsumoto
- Department of Earth and Planetary Materials Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Junya Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Shiga 525-8577, Japan
| | - Akira Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Shiga 525-8577, Japan
- Chinese Academy of Sciences (CAS) Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
| | - Tomoki Nakamura
- Department of Earth and Planetary Materials Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Yuma Enokido
- Department of Earth and Planetary Materials Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Mizuha Kikuiri
- Department of Earth and Planetary Materials Sciences, Tohoku University, Miyagi 980-8578, Japan
| | - Aiko Nakato
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Masahiro Yasutake
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), Hyogo 679-5198, Japan
| | - Kentaro Uesugi
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), Hyogo 679-5198, Japan
| | - Akihisa Takeuchi
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), Hyogo 679-5198, Japan
| | - Satomi Enju
- Earth’s Evolution and Environment Course, Department of Mathematics, Physics, and Earth Science, Ehime University, Ehime 790-8577, Japan
| | - Shota Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Itaru Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Mingqi Sun
- Chinese Academy of Sciences (CAS) Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
| | - Akira Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Mitsutaka Haruta
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yohei Igami
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Hisayoshi Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - Takaaki Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Ryuji Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - Hikaru Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-HiroshimaHiroshima 739-8526, Japan
| | - Hiroshi Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - Kanako Sakamoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Shogo Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | | | - Toru Yada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Masahiro Nishimura
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Akiko Miyazaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Kasumi Yogata
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Masanao Abe
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Tatsuaki Okada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Tomohiro Usui
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Makoto Yoshikawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Takanao Saiki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Satoshi Tanaka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Fuyuto Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - Satoru Nakazawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Sei-ichiro Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Yuichi Tsuda
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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Burgess KD, Cymes BA, Stroud RM. Hydrogen-bearing vesicles in space weathered lunar calcium-phosphates. Commun Earth Environ 2023; 4:414. [PMID: 38665188 PMCID: PMC11041702 DOI: 10.1038/s43247-023-01060-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/18/2023] [Indexed: 04/28/2024]
Abstract
Water on the surface of the Moon is a potentially vital resource for future lunar bases and longer-range space exploration. Effective use of the resource depends on developing an understanding of where and how within the regolith the water is formed and retained. Solar wind hydrogen, which can form molecular hydrogen, water and/or hydroxyl on the lunar surface, reacts and is retained differently depending on regolith mineral content, thermal history, and other variables. Here we present transmission electron microscopy analyses of Apollo lunar soil 79221 that reveal solar-wind hydrogen concentrated in vesicles as molecular hydrogen in the calcium-phosphates apatite and merrillite. The location of the vesicles in the space weathered grain rims offers a clear link between the vesicle contents and solar wind irradiation, as well as individual grain thermal histories. Hydrogen stored in grain rims is a source for volatiles released in the exosphere during impacts.
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Affiliation(s)
- Katherine D. Burgess
- Materials Science and Technology Division, U.S. Naval Research Laboratory, Washington, DC 20375 USA
| | - Brittany A. Cymes
- Materials Science and Technology Division, U.S. Naval Research Laboratory, Washington, DC 20375 USA
- Jacobs, NASA Johnson Space Center, Houston, TX 77058 USA
| | - Rhonda M. Stroud
- Materials Science and Technology Division, U.S. Naval Research Laboratory, Washington, DC 20375 USA
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 USA
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