Antarctica’s Blood Falls runs red because iron-rich brine reddens on contact with the air

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A five-story stain of deep red spills from the white snout of an Antarctic glacier. The cause is not algae and not quite rust: it is ancient, salty, iron-loaded water that has no color underground and turns red only when it meets the open air. The post Antarctica’s Blood Falls runs red because iron-rich brine reddens on contact with the air appeared first on Space Daily .