Accretion of the earliest inner Solar System planetesimals beyond the water snowline
Nature Astronomy, Published online: 09 January 2024; doi:10.1038/s41550-023-02172-w Fe/Ni and Fe/Co ratios in iron meteorites indicate that the earliest inner Solar System planetesimals were oxidized and water-bearing, having formed beyond the point at which water condensed in the solar protoplanetary