- In cosmic dark clouds, radiation determines the chemistry of the gas. An internat. team was able to measure this directly for the first time. Models were provided by @brandt-gaches.space. www.uni-due.de/2026-02-03-f... @natastron.nature.com 📸 ESO, CC BY 4.0 (creativecommons.org/licenses/by/...)Feb 4, 2026 08:38