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Barren dirt, called “fairy circles,” has appeared in round disc shapes in fields around the world. The mysterious origin of this phenomenon has excited scientists for decades, but until now no investigation has been carried out to find out what it really is and why it exists on Earth.
Fairy circles were previously only seen in the arid regions of the Namib Desert in South Africa and in the outback of Western Australia. But a new study used artificial intelligence to identify vegetation patterns that resemble the formations at hundreds of new sites in 15 countries on three continents. This can help a For scholars Understanding and configuring imaginary circuits on a global scale.
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For the new survey, published Monday in the journal Proceedings of the National Academy of Sciences, researchers analyzed high-resolution satellite images of arid, low-rainfall lands and ecosystems around the world. They used a neural network – a type of artificial intelligence that processes information in a similar way to a brain – to search for patterns that resemble imaginary circuits.
The study’s authors trained the neural network to recognize imaginary circles by feeding it more than 15,000 satellite images of Namibia and Australia. The results revealed 263 locations on Earth where mythical circles were formed. These dry patches are widespread in Africa (the Sahel, Western Sahara and the Horn of Africa), and are also clustered in Madagascar and central-west Asia, as well as central and south-western Australia.
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Fairy circles are not the only natural phenomenon that can create circular, repeating spots on the landscape. One factor that distinguishes fairy circles from other plants is the highly organized pattern between the circles, says Dr. Stefan Getzen, a researcher in the Department of Ecosystem Modeling at the University of Göttingen in Germany. CNN.
