Dust grains older than our sun found in Asteroid Ryugu samples

Washington DC (SPX) Aug 18, 2022

Microscopic grains of ancient material that predate our Sun's birth were found in samples returned from the asteroid Ryugu by the Hayabusa2 mission, according to new work from an international team led by Carnegie's Jens Barosch and Larry Nittler and published in The Astrophysical Journal Letters. Named after a Japanese folktale, Ryugu is a near-Earth object shaped kind of like a spinning