Even Comets Can Have Auroras. Comet 67P/Churyumov-Gerasimenko Does

The ESA’s Rosetta mission to Comet 67P/Churyumov-Gerasimenko ended four years ago. On September 30th 2016 the spacecraft was directed into a controlled impact with the comet, putting an end to its 12.5 year mission. Scientists are still working with all its data and making new discoveries. A new study based on Rosetta data shows that …