A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu

T Noguchi, T Matsumoto, A Miyake, Y Igami… - Nature …, 2023 - nature.com
Without a protective atmosphere, space-exposed surfaces of airless Solar System bodies
gradually experience an alteration in composition, structure and optical properties through a …

Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu

DS Lauretta, CD Adam, AJ Allen, RL Ballouz… - Science, 2022 - science.org
Carbonaceous asteroids, such as (101955) Bennu, preserve material from the early Solar
System, including volatile compounds and organic molecules. We report spacecraft imaging …

[HTML][HTML] Overview of the search for signs of space weathering on the low-albedo asteroid (101955) Bennu

BE Clark, A Sen, XD Zou, DN Dellagiustina, S Sugita… - Icarus, 2023 - Elsevier
This paper summarizes the evidence for the optical effects of space weathering, as well as
the properties of the surface that control optical changes, on asteroid (101955) Bennu. First …

[HTML][HTML] A subsurface layer on asteroid (101955) Bennu and implications for rubble pile asteroid evolution

EB Bierhaus, F Rossmann, C Johnson, RT Daly… - Icarus, 2023 - Elsevier
We use observations of Bennu's impact craters, and measurements of particle sizes seen in
images from the OSIRIS-REx (the Origins, Spectral Interpretation, Resource Identification …

[HTML][HTML] The Formation Mechanisms of np-Fe in Lunar Regolith: A Review

M Xiong, Y Wu, W Yao, Z Chen, Y Yu, X Li, P Yan, X Li… - Materials, 2024 - mdpi.com
Nanophase iron (np-Fe) is widely distributed on the surface of lunar soil particles, forming as
a result of space weathering. These np-Fe particles contribute to the reddening and …

Optical spectropolarimetry of large C-complex asteroids: Polarimetric evidence for heterogeneous surface compositions

YG Kwon, S Bagnulo, A Cellino - Astronomy & Astrophysics, 2023 - aanda.org
This study presents the first optical (420–930 nm) spectropolarimetric study of a sample of
large (≳ 100 km in diameter) C-complex asteroids in observing circumstances for which light …

Machine learning mid‐infrared spectral models for predicting modal mineralogy of CI/CM chondritic asteroids and Bennu

LB Breitenfeld, AD Rogers, TD Glotch… - Journal of …, 2021 - Wiley Online Library
Planetary surfaces can be complex mixtures of coarse and fine particles that exhibit linear
and nonlinear mixing behaviors at mid‐infrared (MIR) wavelengths. Machine learning …

Phobos and Deimos surface composition: search for spectroscopic analogues

G Poggiali, M Matsuoka, MA Barucci… - Monthly Notices of …, 2022 - academic.oup.com
Phobos and Deimos, the two satellites of Mars, were largely studied in the past using ground-
based telescope and spacecraft data, although most of the data were obtained by …

Distant formation and differentiation of outer main belt asteroids and carbonaceous chondrite parent bodies

H Kurokawa, T Shibuya, Y Sekine, BL Ehlmann… - AGU …, 2022 - Wiley Online Library
Volatile compositions of asteroids provide information on the Solar System history and the
origins of Earth's volatiles. Visible to near‐infrared observations at wavelengths of< 2.5 µm …

Space-weathering induced changes in hydrated silicates: A multi-scale study combining visible/infrared spectroscopy and electron microscopy

S Rubino, H Leroux, C Lantz, A Aléon-Toppani… - Icarus, 2024 - Elsevier
Investigating the effects of space-weathering on primitive bodies is paramount in assessing
their composition and understanding their history. For this purpose, we conducted 40 keV …