Seventy-one percent of the Earth's surface is water. Seventy-five percent of the human body is water. Water structures cities, nations, borders, where we can live, where we can't live, and our very survival in its most basic terms. In its various forms water is one of our most universal metaphors: for life, for change, and, conversely, for timelessness. The story of our changing climate is one of water: storms, droughts, ice, and shorelines. Water dictates the terms of the search for life, or habitable environments, beyond the Earth. It even encompasses last unexplored parts of our planet, in the depths of the ocean. The stories that may be told through and about water are an endless reservoir, a sea. Those that we present this month are but a drop in the bucket, but as varied as the geometries of snowflakes.