Proc. IAU volume 13, issue S332, P153-162 2017 DOI: 10.1017/s1743921317007852 View full text
Kathrin Altwegg

Abstract: AbstractThe overall goal of the ESA Rosetta mission was to help decipher the origin and evolution of our solar system. Looking at the chemical composition of comet 67P/Churyumov-Gerasimenko is one way of doing this. The amount of very volatile species found and the insight into their isotopic abundances show that at least some presolar ice has survived the formation of the solar system. It shows that the solar nebula was not homogenized in the region where comets formed. The D/H ratio in water furthermore indi…

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