The diurnal cycle of water ice on comet 67P/Churyumov–Gerasimenko
M. C. De Sanctis, F. Capaccioni, M. Ciarniello, G. Filacchione, M. Formisano + et al. Nature 525, 500–503 (24 September 2015) | doi:10.1038/nature14869 LINK “Observations of cometary nuclei have revealed a very limited amount of…































