Meteorites and planet formation

RH Jones - Reviews in Mineralogy and Geochemistry, 2024 - pubs.geoscienceworld.org
Meteorites are a remarkable resource. They capture the imagination of people worldwide
with their spectacular entry through Earth's atmosphere as fireballs, and their exotic …

Low-temperature aqueous alteration of chondrites

MR Lee, CMOD Alexander, A Bischoff… - Space Science …, 2025 - Springer
Chondritic meteorites (chondrites) contain evidence for the interaction of liquid water with
the interiors of small bodies early in Solar System history. Here we review the processes …

Endogenous CO2 ice mixture on the surface of Europa and no detection of plume activity

GL Villanueva, HB Hammel, SN Milam, S Faggi… - Science, 2023 - science.org
Jupiter's moon Europa has a subsurface ocean beneath an icy crust. Conditions within the
ocean are unknown, and it is unclear whether it is connected to the surface. We observed …

Water circulation in Ryugu asteroid affected the distribution of nucleosynthetic isotope anomalies in returned sample

T Yokoyama, M Wadhwa, T Iizuka, V Rai, I Gautam… - Science …, 2023 - science.org
Studies of material returned from Cb asteroid Ryugu have revealed considerable
mineralogical and chemical heterogeneity, stemming primarily from brecciation and …

Carbonate record of temporal change in oxygen fugacity and gaseous species in asteroid Ryugu

W Fujiya, N Kawasaki, K Nagashima, N Sakamoto… - Nature …, 2023 - nature.com
The Hayabusa2 spacecraft explored asteroid Ryugu and brought its surface materials to
Earth. Ryugu samples resemble Ivuna-type (CI) chondrites—the most chemically primitive …

The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites

F Spitzer, T Kleine, C Burkhardt, T Hopp… - Science …, 2024 - science.org
The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type
(CI) chondrites are distinct from other carbonaceous chondrites, which has led to the …

Origin of isotopic diversity among carbonaceous chondrites

JL Hellmann, JM Schneider, E Wölfer… - The Astrophysical …, 2023 - iopscience.iop.org
Carbonaceous chondrites are some of the most primitive meteorites and derive from
planetesimals that formed a few million years after the beginning of the solar system. Here …

A history of mild shocks experienced by the regolith particles on hydrated asteroid Ryugu

N Tomioka, A Yamaguchi, M Ito, M Uesugi, N Imae… - Nature …, 2023 - nature.com
Micrometeorites, a possible major source of Earth's water, are thought to form from explosive
dispersal of hydrated chondritic materials during impact events on their parental asteroids …

Phosphorus-rich grains in Ryugu samples with major biochemical potential

C Pilorget, D Baklouti, JP Bibring, R Brunetto, M Ito… - Nature …, 2024 - nature.com
Parent bodies of C-type asteroids may have brought key volatile and organic-rich
compounds to the terrestrial planets in the early stages of the Solar System. At the end of …

[HTML][HTML] Hayabusa 2 returned samples reveal a weak to null magnetic field during aqueous alteration of Ryugu's parent body

C Maurel, J Gattacceca, M Uehara - Earth and Planetary Science Letters, 2024 - Elsevier
The JAXA Hayabusa 2 mission returned 5.4 g of material from the C-type asteroid Ryugu.
The Mn-Cr ages of dolomite in the returned samples indicate that Ryugu's parent body …