Ancient microbes found under ice | 'Blood falls' turns red with rust, colour not caused by algae
Recent scientific discoveries regarding Antarctica's famous Blood Falls have unmasked the secrets behind its eerie, crimson-colored outflow. Researchers found that the striking red hue is not caused by red algae as historically suspected, but rather by iron-rich hypersaline brine trapped beneath Taylor Glacier for over a million years, which rapidly rusts upon hitting atmospheric oxygen.
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