The CM chondrites are samples of primitive water-rich asteroids formed during the early
solar system. They record significant interaction between liquid water and silicate rock …

The CHONS elements that constitute the outgassed atmosphere and exosphere have likely
been delivered by chondritic materials to the Earth during planetary accretion and …

Without a protective atmosphere, space-exposed surfaces of airless Solar System bodies
gradually experience an alteration in composition, structure and optical properties through a …

Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI
(Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich …

We have investigated several particles collected during each of two touchdowns of the
Hayabusa2 spacecraft at the surface of the C-type asteroid 162173 Ryugu using various …

Abstract Planets with 2 R⊕< R< 3 R⊕ and orbital period< 100 days are abundant; these
sub-Neptune exoplanets are not well understood. For example, Kepler sub-Neptunes are …

A quantitative understanding of the elemental and isotopic fractionations recorded in the
compositions of the chondritic meteorites would provide fundamental constraints for …

The Winchcombe meteorite is a CM chondrite breccia composed of eight distinct lithological
units plus a cataclastic matrix. The degree of aqueous alteration varies between intensely …

Meteorites originating from primitive C-type asteroids are composed of materials from the
Sun's protoplanetary disk, including up to a few per cent organic carbon. In contrast, some …

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 …