Matt WillemsenMar 30, 2024
Stardust Found in an Ancient Meteorite Was Left by a New Kind of Supernova
https://www.sciencealert.com/stardust-found-in-an-ancient-meteorite-was-left-by-a-new-kind-of-supernova #astronomy #meteorite #dust #supernova #presolar #olivine #isotope
Stardust Found in an Ancient Meteorite Was Left by a New Kind of Supernova

A grain of dust recovered from an ancient meteorite that plonked itself down in Antarctica appears to be from a rather unusual place in space and time.

ScienceAlert
Matt WillemsenAug 4, 2023
Ryugu samples reveal traces of rock from before the Sun existed
Small bits of material in the asteroid contain isotopes made in specific stars.
https://arstechnica.com/science/2023/08/ryugu-samples-reveal-traces-of-rock-from-before-the-sun-existed/ #ryugu #asteroid #sample #presolar #ProtoplanetaryDisk
Ryugu samples reveal traces of rock from before the Sun existed

Small bits of material in the asteroid contain isotopes made in specific stars.

Ars Technica