Two independent and primitive envelopes of the bilobate nucleus of comet 67P
Matteo Massironi, Emanuele Simioni, Francesco Marzari, Gabriele Cremonese, Lorenza Giacomini + et al. Nature (28 September 2015) | doi:10.1038/nature15511 LINK “The factors shaping cometary nuclei are still largely unknown, but could be the result of…