"Rosetta Orbiter and Lab Confirm Complex Organosulfur Molecules on Comet 67P"

Scientists studying data from the Rosetta orbiter's spectrometer for ion and neutral analysis (ROSINA) instrument have detected large organosulfur molecules on the surface of comet 67P/Churyumov-Gerasimenko. They conducted laboratory simulations to show that these molecules could have formed through chemical reactions involving hydrogen sulfide. The findings highlight the significance of cometary sulfur chemistry and its presence in precometary materials, providing insights into the composition of comets and icy small bodies. The James Webb Space Telescope is expected to further enhance our understanding of the chemistry of the solar system and the evolution of such interstellar bodies.