Antarctica's Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney on November 26, 2006.

National Science Foundation/Peter Rejcek

Blood Falls is a waterfall of vibrant red water that oozes out of Antarctica's Taylor Glacier. Its unique color is due to iron salts seeping out of the ice that turn red when exposed to oxygen. The falls are home to microbes that can survive extreme conditions, with no light or oxygen. A large glacier in Antarctica produces a bright red river that...
Continue Reading Blood Falls gushes red water from Antarctica's ice. It took scientists 106 years to figure out what causes its color.