In addition to long-lived radioactive nuclei like U and Th isotopes, which have been used to
measure the age of theGalaxy, also radioactive nuclei with half-lives between 0.1 and 100 …

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 …

High‐precision bulk aluminum‐magnesium isotope measurements of calcium‐aluminum‐
rich inclusions (CAI s) from CV carbonaceous chondrites in several laboratories define a …

Jupiter and Saturn formed early, before the gas disk dispersed. The presence of gap-
opening planets affects the dynamics of the gas and embedded solids and halts the inward …

Based on a 3D supernova simulation of an 11.8 M⊙ progenitor model with an initial solar
composition, we study the nucleosynthesis using tracers covering the innermost 0.1 M⊙ of …

Short-lived radionuclides (SLRs) once present in the solar nebula can be used as probes of
the formation environment of our Solar System within the Milky Way Galaxy. The first-formed …

Astrophysical models of planet formation require accurate radiometric dating of meteoritic
components by short-lived (Al–Mg, Mn–Cr, Hf–W) and long-lived (Pb–Pb) chronometers, to …

X-ray emission in young stellar objects (YSOs) is orders of magnitude more intense than in
main sequence stars,, suggestive of cosmic ray irradiation of surrounding accretion disks …

We review recent results on O‐and Mg‐isotope compositions of refractory grains (corundum,
hibonite) and calcium, aluminum‐rich inclusions (CAIs) from unequilibrated ordinary and …

Understanding the genetic relationship between different chondritic components will help to
decipher their origin and dynamical evolution within the protoplanetary disk. Here, we obtain …