Blood Falls: Nature's Liquid Rust

Antarctica has this one place, Blood Falls, where bright red water spills out

of a glacier like it's some sort of frozen wound. But don't worry, there's no real

blood. The color comes from super-salty water trapped beneath the ice for millions

of years. It's loaded with iron, and when that hidden brine finally leaks

out and meets the air, the iron reacts with oxygen and turns a deep rust-red,

just like metal left out in the rain. What you're seeing is nature's own

liquid rust flowing out of pure white ice. And here's the wildest part: in that brine,

scientists have found resilient microbes surviving in freezing darkness, salty water,