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1-20 OF 57 RESULTS FOR
Ryugu Asteroid
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Journal Article
Progressive change in dislocation microstructures in shocked calcite with pressure: Characterization of micrometeoroid bombardment on asteroid Ryugu Available to Purchase
Naotaka Tomioka, Kosuke Kurosawa, Akira Miyake, Yohei Igami, Takayoshi Nagaya, Takaaki Noguchi, Toru Matsumoto, Masaaki Miyahara, Yusuke Seto
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 2025
American Mineralogist (2025) 110 (6): 945–955.
..., according to the microstructural evolution with shock pressure. Above ∼6 GPa, the dislocations nucleated homogeneously throughout the calcite crystals. The dislocation microstructure in a calcite grain collected from the asteroid Ryugu particle is similar to that of the experimentally shocked calcite at 4.2...
Image
Calcite grain in an asteroid Ryugu particle. ( a ) BF-TEM image. The grain ... Available to Purchase
in Progressive change in dislocation microstructures in shocked calcite with pressure: Characterization of micrometeoroid bombardment on asteroid Ryugu
> American Mineralogist
Published: 01 June 2025
Figure 12. Calcite grain in an asteroid Ryugu particle. ( a ) BF-TEM image. The grain exhibits { 01 1 ¯ 8 } twinning ( e -twin) and dislocations with a density of 8.9 × 10 8 (cm −2 ). Cal = calcite; Phy = phyllosilicates; Pt = platinum protection layer. ( b ) Enlarged BF-TEM
Image
( A ) C-type asteroid Ryugu. Its diameter is ~900 m. P hoto : JAXA, Univ. T... Available to Purchase
in Asteroidal Organics from the Sample Return Mission Hayabusa2 and their Implication for Understanding our Origins
> Elements
Published: 01 February 2024
Figure 1. ( A ) C-type asteroid Ryugu. Its diameter is ~900 m. P hoto : JAXA, Univ. T okyo , K ochi U niv ., R ikkyo U niv ., N agoya U niv ., C hiba I nst . T ech ., M eiji U niv ., U niv . A izu , and AIST. ( B ) Schematic illustration of Hayabusa2 . ( C ) Images taken soon after
Image
Observation of asteroid Ryugu by the Hayabusa2 spacecraft. ( A ) Visible li... Available to Purchase
Published: 01 June 2022
Figure 5. Observation of asteroid Ryugu by the Hayabusa2 spacecraft. ( A ) Visible light images of Ryugu taken with the Optical Navigation Camera–Telescopic (ONC-T) from 20 km altitude on July 10, 2018. ( B ) Normalized intensity of the 2.72-μm feature obtained with the Near-Infrared Spectrometer
Journal Article
Asteroidal Organics from the Sample Return Mission Hayabusa2 and their Implication for Understanding our Origins Available to Purchase
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 February 2024
Elements (2024) 20 (1): 31–37.
...Figure 1. ( A ) C-type asteroid Ryugu. Its diameter is ~900 m. P hoto : JAXA, Univ. T okyo , K ochi U niv ., R ikkyo U niv ., N agoya U niv ., C hiba I nst . T ech ., M eiji U niv ., U niv . A izu , and AIST. ( B ) Schematic illustration of Hayabusa2 . ( C ) Images taken soon after...
Journal Article
Japan Association of Mineralogical Sciences Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 April 2023
Elements (2023) 19 (2): 120–121.
... MODIFICATION OF THE CARBONACEOUS ASTEROID RYUGU INFERRED FROM PETROLOGICAL AND MINERALOGICAL SIGNATURES OF THE RETURNED SAMPLES Megumi Matsumoto1 and Toru Matsumoto2 Asteroids are thought to be remnants of planet formation that can provide clues to the origin and evolution of the Solar System. The Hayabusa2...
Journal Article
Book Review Free
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 December 2024
American Mineralogist (2024) 109 (12): 2176–2177.
..., and our daily lives is presented in Chapter 12. Additionally, this book also offers an exhaustive introduction to the Hayabusa2 spacecraft and its trophy-like collection of samples from the Ryugu asteroid (Chapter 11). This captivating and unique content will undoubtedly attract readers from many...
Journal Article
Recent Advances in our Understanding of Water and Aqueous Activity in Chondrites Available to Purchase
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 June 2022
Elements (2022) 18 (3): 175–180.
...Figure 5. Observation of asteroid Ryugu by the Hayabusa2 spacecraft. ( A ) Visible light images of Ryugu taken with the Optical Navigation Camera–Telescopic (ONC-T) from 20 km altitude on July 10, 2018. ( B ) Normalized intensity of the 2.72-μm feature obtained with the Near-Infrared Spectrometer...
Journal Article
Sociedad Española de Mineralogía Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 April 2023
Elements (2023) 19 (2): 121.
... features in their reflectance spectra; this is related to water absorption. Based on the analysis of the Ryugu samples, the absence of the 2.7-µm absorption band can be partly explained by surface dehydration resulting from space weathering, suggesting that asteroids showing apparently dry surfaces may...
Journal Article
Meet the Authors Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 February 2024
Elements (2024) 20 (1): 5–6.
... at Johnson Space Center (USA). Most recently, he analyzed organic matter in surface regolith grains from the asteroid Ryugu by the JAXA Hayabusa2 mission as part of the Hayabusa2 Initial Analysis Team. Timothy D. Glotch is a professor of geosciences at Stony Brook University, USA. He uses vibrational...
Journal Article
7. SPACE RESOURCES Available to Purchase
Journal: Geochemical Perspectives
Publisher: European Association for Geochemistry
Published: 01 April 2020
Geochemical Perspectives (2020) 9 (1): 87–98.
... the asteroid Ryugu ( Fig. 7.5 ) in February, 2019 for eventual return to Earth ( https://www.nytimes.com/2019/02/21/science/ryugu-asteroid-hayabusa2.html ). Unlike the Earth, Moon, and Mars, asteroids tend to be more homogenous and little changed since primary accretion from the solar nebula. Thus, although...
Journal Article
Delivery of Organic Matter to the Early Earth Available to Purchase
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 February 2024
Elements (2024) 20 (1): 19–23.
... carbonaceous chondrites from Antarctica . Origins of Life and Evolution of the Biosphere 29 : 187 - 201 , doi: 10.1023/A:1006547127028 Naraoka H and 114 coauthors ( 2023 ) Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu . Science 379 : abn9033 , doi...
Journal Article
Japan Association of Mineralogical Sciences Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 December 2024
Elements (2024) 20 (6): 427–428.
... small bodies in the early Solar System. After relocating to Tohoku University, she applied combined analysis to asteroid Ryugu samples collected by the Hayabusa 2 sample return mission and discovered fluid inclusions of carbonated water and evidence of impacts of cometary dust on the asteroid Ryugu...
Journal Article
Meteorites and Planet Formation Available to Purchase
Publisher: Mineralogical Society of America
Published: 01 July 2024
Reviews in Mineralogy and Geochemistry (2024) 90 (1): 113–140.
... ; Dodds et al. 2021 ). Figure 2. Bulk chondrite carbon and water contents for ordinary chondrites (OC), carbonaceous chondrites (individual groups are prefixed with C), the unique carbonaceous chondrite, Tagish Lake (TL), and for asteroid Ryugu which is comparable to CI1 chondrites. Data are from...
Image
Multi-scale image of hydrous materials from C-complex asteroids, ( from le... Available to Purchase
Published: 01 June 2022
Multi-scale image of hydrous materials from C-complex asteroids, ( from left ) asteroid Ryugu, chunk of the CM Winchcombe meteorite, and backscattered-electron image of the CM Paris meteorite.
Journal Article
Space Resources–A Framework for the Future Available to Purchase
Journal: SEG Discovery
Publisher: Society of Economic Geologists
Published: 01 April 2019
SEG Discovery (2019) (117): 1–20.
.... Asteroids have even lower gravitational fields than the moon, and likewise no atmosphere. Thus, maneuvering around them is relatively straightforward, as was recently demonstrated by the Japanese spacecraft Hayabusa2 that landed on and extracted samples from the asteroid Ryugu in February 2019 ( https...
Journal Article
Extraterrestrial Organic Matter: An Introduction Available to Purchase
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 February 2024
Elements (2024) 20 (1): 7–12.
... successfully brought back samples from asteroid 25143-Itokawa, an S-type (“stony”) asteroid that has experienced high temperatures. Nevertheless, it contains small amounts of organic matter. More recently, JAXA’s Hayabusa2 spacecraft returned samples from C-type asteroid 162173-Ryugu and unraveled its...
Journal Article
Japan Association of Mineralogical Sciences Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 October 2024
Elements (2024) 20 (5): 344.
... and contributed to the sample collection at asteroid Ryugu, as well as the analysis of Ryugu samples. He has also participated in astronomical observations to understand Solar System evolution in the broader context of planetary system formation in space. He is currently a professor at the UTokyo Organization...
Journal Article
Meteoritical Society Free
Journal: Elements
Publisher: Mineralogical Society of America
Published: 01 February 2023
Elements (2023) 19 (1): 46–47.
... of the Meteoritical Society in Glasgow goes to Kaitlyn McCain (University of California, Los Angeles, USA) for the talk entitled Early fluid activity on the Ryugu parent asteroid inferred from 53Mn-53Cr ages of Ryugu carbonate. The award comes with a prize of US$1,000 and a certificate. The WILEY-BLACKWELL AWARD...
Image
Bulk chondrite carbon and water contents for ordinary chondrites (OC), carb... Available to Purchase
Published: 01 July 2024
Figure 2. Bulk chondrite carbon and water contents for ordinary chondrites (OC), carbonaceous chondrites (individual groups are prefixed with C), the unique carbonaceous chondrite, Tagish Lake (TL), and for asteroid Ryugu which is comparable to CI1 chondrites. Data are from Alexander et al
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