Over the past two decades, large strides have been made in the field of planet formation. Yet
fundamental questions remain. Here we review our state of understanding of five …

A number of distinct methodologies are available for determining the oxygen isotope
composition of minerals and rocks, these include laser-assisted fluorination, secondary ion …

Astronomical observations reveal that protoplanetary disks around young stars commonly
have ring-and gap-like structures in their dust distributions. These features are associated …

Transient heating events that formed calcium-aluminum–rich inclusions (CAIs) and
chondrules are fundamental processes in the evolution of the solar protoplanetary disk, but …

Nucleosynthetic isotope anomalies are powerful tracers to determine the provenance of
meteorites and their components, and to identify genetic links between these materials. Here …

The terrestrial planets and the asteroids dominant in the inner asteroid belt are water poor.
However, in the protoplanetary disk the temperature should have decreased below water …

Abstract Earth, Venus, Mars and asteroids such as Vesta and, perhaps, Lutetia have
chondritic bulk compositions with massive silicate mantles surrounding iron cores …

Chondrules are the millimetre-scale, previously molten, spherules found in most meteorites.
Before chondrules formed, large differentiating planetesimals had already accreted. Volatile …

Chondrules from unequilibrated ordinary and carbonaceous chondrites belong to the oldest
and most primitive materials from the early solar system and record chemical and isotopic …

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