Canada’s NEOSSat has been closely monitoring comet 46P/Wirtanen, which you’ll be able to see with the naked eye in the coming days in a dark sky location. 46P/Wirtanen takes 5.4 years to complete an orbit around the Sun. As the comet approaches the Sun, its icy composition melts and produces a tail, which is seen as a fuzzy patch in the sky. Around December 16, comet 46P/Wirtanen should be at its brightest and closest to Earth – within 12 million km, or 30 times the Earth-to-Moon distance. That’