Antarctica is home to Blood Falls, a strange waterfall flowing with deep red water from Taylor Glacier into Lake Bonney. The red color comes from iron-rich salty water trapped under the glacier for millions of years. When this water meets oxygen at the surface, it turns red like rust. The waterfall is about five stories high and flows slowly in the dry McMurdo Dry Valleys. Underneath the ice, a subglacial lake supports unique microorganisms that survive without light or oxygen. These microbes get energy by recycling sulphates with iron, showing how life can exist in extreme isolation. The salty water flows through cracks in the glacier, melting ice just enough to keep Blood Falls moving. Studying this natural wonder helps scientists learn about life in harsh conditions and the possibilities of life on other planets.