From esa https://twitter.com/esa on Twitter: A beautiful #winter wonderland... on #Mars! This ice-filled crater was imaged by our Mars Express spacecraft. Korolev crater is 82 kilometres across and found in the northern lowlands of Mars. More images: http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Mars_Express_gets_festive_A_winter_wonderland_on_Mars https://twitter.com/esa/status/1075723754251137024/photo/1 https://chirp.cooleysekula.net/attachment/53140