On September 20, 2019 one of the largest research expeditions in the Central Arctic ever conducted will begin when the Polarstern icebreaker sets out to freeze itself in Arctic sea ice for a year. Keep track of the expedition and what’s going on in the Arctic through MOSAiC's weekly news – MOSAiC Monday – great for K-12, undergraduate, and graduate classroom use. Engage your students with real-time updates, behind the scenes access to the MOSAiC expedition, and short, simple activities. Sign up to receive MOSAiC Monday in your inbox every Monday during the expedition. PolarTREC educator, Katie Gavenus and researcher Anne Gold will be on the first leg of this expedition. You can follow their journey through the expedition page on PolarTREC and subscribe to their journals.