[Article Publication] A paper on Ryugu particles, in which JAMSTEC/Kochi Core Principal Researcher (Visiting Professor at Hiroshima University) Tomioka participated, was published in Nature Astronomy.

The parent bodies of C-type asteroids may have delivered volatile and organic compounds to terrestrial planets, and samples returned by Hayabusa2 from Ryugu contain hydrated ammonium–magnesium–phosphorus-rich grains, believed to originate from the outer Solar System, which could have played a critical role in the chemical evolution of organic matter on early Earth by releasing phosphorus and nitrogen species (Published paper url).