[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 Communications.

Ryugu particles contain noble gases derived from solar wind and P1 with high concentrations, and one of the newly analyzed samples shows a xenon concentration approximately 10 times higher, resembling P1 but with distinct isotopic fractionation and a lower 36Ar/132Xe ratio. This newly identified component (P7) provides insights into the fractionation processes that formed planetary components (Published paper url).