It’s winter here on Earth for those living in the Northern Hemisphere. This means snow, rain, colder temperatures, and all the other things we associate with “the festive season.” Much the same is true for Mars (aka “Earth’s Twin”), which is also experiencing winter in its Northern Hemisphere right now. This means colder temperatures, especially around the polar regions where it can get as low as -123 °C (-190 °F), as well as ice, snow, frost, and the expansion of the polar ice caps — which are composed of both water ice and frozen carbon dioxide (“dry ice”).
