Nature Astronomy, Published online: 30 November 2023; doi:10.1038/s41550-023-02137-z

Iron nitride (Fe4N) is detected on magnetite particles within the Ryugu sample returned by Hayabusa2. It is probably the product of impacts of nitrogen-rich dust from the outer Solar System on the surface of Ryugu, indicative of a flux of N-rich dust in the inner Solar System.

—————
Free Secure Email – Transcom Sigma
Transcom Hosting
Transcom Premium Domains