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 …

Chondrites consist of three major components: refractory inclusions (Ca, Al‐rich inclusions
[CAI s] and amoeboid olivine aggregates), chondrules, and matrix. Here, I summarize recent …

Chondrule-like objects and Ca-Al-rich inclusions (CAIs) are discovered in the retuned
samples from asteroid Ryugu. Here we report results of oxygen isotope, mineralogical, and …

The systematic isotopic difference between refractory inclusions and chondrules, particularly
for oxygen, has long indicated an isotopic evolution of the solar protoplanetary disk …

Isotopic anomalies in chondrules hold important clues about the dynamics of mixing and
transport processes in the solar accretion disk. The meaning of these anomalies is debated …

Deciphering the spatial and temporal evolution of chondrules allows for a better
understanding of how asteroidal seeds formed, migrated, and eventually accreted into …

The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly
of low-temperature aqueously formed secondary minerals and are chemically and …

We have studied porphyritic olivine-rich chondrules of the carbonaceous chondrite Kaba
(CV3) by combined high-resolution X-ray map**, quantitative electron microprobe …

Dynamic models of solar system evolution suggest that D-type asteroids formed beyond
Saturn's orbit and represent invaluable witnesses of the prevailing conditions in the outer …

CI chondrites have nonvolatile chemical compositions closely resembling that of the Sun's
photosphere and are thus considered to have the most primitive compositions of all known …