Results 191 to 200 of about 3,943 (246)

3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159

Meteoritics & Planetary Science
Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system ...
Léna Jossé, Z. Dionnet, A. Aléon‐Toppani, Rosario Brunetto, A. King, Emmanuel Gardés, Eva Héripré, D. Loizeau, S. Cryan, K. Hatakeda   +9 more
semanticscholar   +1 more source

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

Meteoritics & Planetary Science
Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the
R. Fukai, M. Nishimura, K. Yumoto, Yuichiro Cho, Yuta Shimizu, Moe Matsuoka, Eri Tatsumi, Soichiro Furukawa, Ryosuke Sakurai, T. Yada, K. Hatakeda, K. Yogata, Y. Enokido, Rui Tahara, Akiko Miyazaki, S. Kawasaki, R. Kanemaru, S. Sugita, S. Mori, Shumpei Nakahara, Yuta Aikyo, Hideaki Miyamoto, C. Pilorget, D. Loizeau, L. Nardelli, R. Sheppard, Cateline Lantz, L. Riu, J. Bibring, Rosario Brunetto, Tatsuaki Okada, M. Abe, T. Usui   +32 more
semanticscholar   +1 more source

Blowing a crater in asteroid Ryugu

Science, 2020
Asteroids The Hayabusa2 spacecraft was designed to collect samples from the nearby asteroid (162173) Ryugu and return them to Earth for laboratory analysis. Arakawa et al. describe how the spacecraft's Small Carry-on Impactor was fired into the asteroid's surface, producing an artificial impact crater.
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Occurrence and characterization of nanosulfide‐rich regions on asteroid Ryugu: Insights from mackinawite and pyrrhotite

Meteoritics & Planetary Science
Samples returned from asteroid Ryugu by the Hayabusa2 mission are dominated by fine‐grained matrix material made of phyllosilicates and nanosulfides. Here, we report the mineralogical, textural, and chemical characteristics of nanosulfide‐rich regions ...
Roberto Conconi, H. Leroux, Maya Marinova, S. Laforet, Damien Jacob, Léna Jossé, A. Aléon‐Toppani, Z. Dionnet, Rosario Brunetto, Corentin Le Guillou   +9 more
semanticscholar   +1 more source

O-Fe-Ti Isotopic Evidence for Classifying Oued Chebeika 002 as a CI Chondrite and Its Genetic Affinities with CY Chondrites, Ryugu, and Bennu

Monthly Notices of the Royal Astronomical Society: Letters
This paper reports the chemical and isotopic compositions of Oued Chebeika 002 (OC 002). High-precision, mass-independent O, Fe, and Ti isotope data confirm that it is the first desert-derived CI chondrite. Trace elemental data indicate that the sample
Ke Zhu, Bokai Dai, Xiaobin Cao, S. Tian, Lu Chen   +4 more
semanticscholar   +1 more source

Ryugu, un asteroide da favola

2019
In attesa che il team della missione Hayabusa-2 decida il punto migliore in cui prelevare il campione di terreno da riportare a terra, tredici regioni dell’asteroide Ryugu hanno ora delle denominazioni ufficiali, derivate da racconti tradizionali per l ...
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Elastic Properties of Returned Samples From Asteroid (162173) Ryugu

Journal of Geophysical Research: Planets
The successful sample return from asteroid (162173) Ryugu by Hayabusa2 has contributed to our understanding of the solar system evolution. Over the course of the initial sample analysis, various measurements were conducted, such as mineralogical ...
K. Onodera, Yuta Ino, S. Tanaka, T. Kawamura, T. Ishizaki, R. Kanemaru, R. Fukai, Takeshi Tsuji, Tomoki Nakamura, Daisuke Nakashima, M. Uesugi, S. Tachibana, S. Sugita, H. Yurimoto, T. Noguchi, R. Okazaki, H. Yabuta, H. Naraoka, K. Sakamoto, T. Yada, M. Nishimura, A. Nakato, Akiko Miyazaki, K. Yogata, M. Abe, Tatsuaki Okada, T. Usui, M. Yoshikawa, T. Saiki, F. Terui, S. Nakazawa, S. Watanabe, Yuichi Tsuda   +32 more
semanticscholar   +1 more source

Ryugu arrossisce baciato dal Sole

2020
Grazie alle osservazioni spettroscopiche e morfologiche che Hayabusa2 ha effettuato durante il suo primo touchdown su Ryugu, un team di astronomi avanza una possibile spiegazione della differente colorazione che la “trottola spaziale” mostra a differenti latitudini, proponendo un modello evolutivo del primitivo asteroide ...
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Photometry of (162173) Ryugu and its artificial crater as inferred by Hayabusa2/ONC images

Monthly notices of the Royal Astronomical Society
The JAXA/Hayabusa2 rendezvoused with the (162 173) Ryugu asteroid from June 2018 to November 2019, performing an artificial impact experiment on 5th April 2019. The goal of this work is to study the photometric properties’ variation of the target area
A. Longobardo, M. Angrisani, E. Palomba, F. Dirri, Y. Yokota, T. Kouyama   +5 more
semanticscholar   +1 more source

Collecting a sample of asteroid Ryugu

Science, 2020
Asteroids The Hayabusa2 spacecraft recently traveled to the nearby carbonaceous asteroid Ryugu to collect samples and return them to Earth for laboratory analysis. Morota et al. describe Hayabusa2's first sample collection, taken during a brief touchdown on Ryugu's surface. Close-up images and video taken during the sampling process allowed the authors
openaire   +1 more source