govMar 6, 2026
Cordiner et al. 2026NASA GoddardMar 6, 2026arXiv:2603.06911
This paper presents the findings of the D/H ratio in 3I's water vapor.

Sentinel argues that two new NASA Goddard papers on 3I/ATLAS contain chemical and dynamical results that existing models do not fully explain.


Sentinel argues that two independent observational teams found unusually old isotopic signatures in 3I/ATLAS, while later chemistry and mass-budget analysis raise questions about a conventional comet interpretation.

This paper presents the findings of the D/H ratio in 3I's water vapor.