67P/Churyumov–Gerasimenko size and scale context

67P/Churyumov–Gerasimenko is the comet nucleus studied in unrivaled detail by ESA’s Rosetta mission. Rosetta detected molecular oxygen streaming from the comet, a surprising result that suggests some of its ice preserves very early Solar System chemistry. Read its scale context, comparisons, and journey links on the canonical object page.