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Researchers solve the mystery behind 'bleeding' Antarctica waterfall

Home> News

Published 15:37 9 Jul 2023 GMT+1

Researchers solve the mystery behind 'bleeding' Antarctica waterfall

The eerie-looking phenomenon has been dubbed 'Blood Falls'

Claire Reid

Claire Reid

The mystery of a red-hued glacier outlet - dubbed Blood Falls - has been solved decades after it was first spotted.

The eerie-looking phenomenon was first noted all the way back in 1911 after the crew of a British expedition to Antarctica noticed that one glacier appeared to be ‘bleeding’ onto a frozen lake.

Due to its colour, the spot on Taylor Glacier was given the name Blood Falls and its true cause remained a mystery for decades.

US scientists visited the spot in 2006 and again in 2018 where they collected samples which were then analysed using new technology and equipment.

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Despite numerous studies taking place on Blood Falls’ chemistry and microbes living in the water - a full mineralogical make-up had not been undertaken, until last year.

Using new scientific equipment, researchers were finally able to uncover the secrets of Blood Falls.

Blood Falls Antarctica photographed in 2006.
National Science Foundation/Peter Rejcek

Materials scientist Ken Livi from Johns Hopkins University, who worked on the study, explained: "As soon as I looked at the microscope images, I noticed that there were these little nanospheres and they were iron-rich."

The teeny particles, which are a hundredth of the size of human red blood cells, were found to have come from ancient microbes and were found to be abundant in the meltwaters of Taylor Glacier.

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The tiny particles - or nanospheres - contain silicon, calcium, aluminium, and sodium, as well as iron, and this specific make up is what is partly responsible for turning the water red as it slips off the glacier and finds sunlight, oxygen and warmth for the first time in a very long time.

Livi explained: "In order to be a mineral, atoms must be arranged in a very specific, crystalline, structure.

"These nanospheres aren't crystalline, so the methods previously used to examine the solids did not detect them."

The unusual spot has been dubbed ‘Blood Falls’.
YouTube/PBS Terra

The glacier is home to an ancient microbial community hundreds of meters under its ice, which has evolved over centuries - meaning it can provide useful insights for astrobiologists, hoping to discover hidden life forms on other planets.

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The study also suggested that even if there is life on other planets - such as Mars - humans won’t be able to detect it unless they have the correct equipment.

Livi said: "Our work has revealed that the analysis conducted by rover vehicles is incomplete in determining the true nature of environmental materials on planet surfaces.

"This is especially true for colder planets like Mars, where the materials formed may be nanosized and non-crystalline. Consequently, our methods for identifying these materials are inadequate."

Featured Image Credit: YouTube/PBS Terra

Topics: World News, Science

Claire Reid
Claire Reid

Claire is a journalist at LADbible who, after dossing around for a few years, went to Liverpool John Moores University. She graduated with a degree in Journalism and a whole load of debt. When not writing words in exchange for money she is usually at home watching serial killer documentaries surrounded by cats. You can contact Claire at [email protected]

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