
A photo The ‘Blood falls’ in Antarctica s1.ezgif.com
A photo The ‘Blood falls’ in Antarctica which caused by a subterranean lake that is high in salt and oxidized iron. When the water comes into contact with the air, it rusts, giving it its red color.
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TL;DR:
Blood Falls is a natural phenomenon in Antarctica where bright red, iron-rich, salty water flows from the Taylor Glacier into Lake Bonney. The red color comes from iron in the water oxidizing (rusting) when it hits the air. The water comes from a subglacial lake that’s been trapped under ice for millions of years, hosting unique microbes that survive without sunlight or oxygen.