Alert, Nunavut, Canada on the northern tip of Ellesmere Island is the northernmost inhabited community on earth. The North Pole is only 508 miles away. Daylight and darkness in Alert are five months long. In the month between those periods, the sun bobs above and below the horizon, giving the illusion of normal days, even though the length of daylight and darkness varies. Take a look at life in Alert, in this article I wrote for mental_floss.