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Adventurers Explore The Depths Of The Mediterranean Sea And Discover 1,400 Perfectly Drawn Giant Circles In The Sand, Spanning 250,000 Square Meters And Intriguing Scientists With Their Geometric Precision

Published on 12/03/2026 at 11:48
Updated on 12/03/2026 at 18:09
Círculos, Fundo Mar
Imagem: Ilustração artística
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Giant Circles in the Mediterranean Intrigue Scientists After Discovery of 1,400 Perfectly Symmetrical Rings Spread Across 250,000 m² of the Seafloor

The discovery of giant underwater circles on the seafloor of the Mediterranean Sea surprised scientists and divers after the recording of 1,400 symmetrical rings distributed over 250,000 square meters. The formation was mapped by diver Laurent Ballesta’s team using sonar and submersibles.

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Discovery of Underwater Circles Surprises Explorers

The enormous underwater circles were identified during an expedition led by diver Laurent Ballesta.

The team used submersibles and sonar equipment to record the structures spread across the sandy bottom of the Mediterranean Sea.

In total, about 1,400 rings were cataloged in an area of 250,000 square meters.

The geometric precision of the formations caught immediate attention, as the circles exhibit symmetry that is considered impressive by the researchers involved in the exploration.

The surface of the seafloor shows patterns resembling geometric designs made in the sand.

This precise repetition of shapes is one of the aspects that arouses significant interest among scientists and divers.

Giant Circles
Image: Disclosure

How Researchers Mapped the Underwater Circles

To record the underwater landscape, the team used high-precision sonars capable of revealing the dimensions and distribution of the rings.

The submersibles employed allowed researchers to approach the structures safely during the documentation process.

Before publicly releasing the data, scientists analyzed hours of footage captured at the site.

The aim was to ensure that the observed patterns genuinely corresponded to the formations recorded by the equipment.

This work resulted in a detailed map of the structures identified on the bottom of the Mediterranean.

Hypotheses Discussed for the Origin of the Formations

Researchers are still discussing what may have triggered the emergence of the underwater circles.

One hypothesis considers that ocean currents and constant whirlpools over decades may have shaped the rings on the sandy seafloor.

Another possibility examined involves marine organisms that repeatedly interact with the sediment.

So far, none of the explanations have been definitively confirmed.

The perfection of the circle edges is a factor that keeps the phenomenon in debate among specialists in the field.

Circles, Seafloor, Mediterranean Sea
Divers collected samples, which were then carbon-dated. The analysis confirmed that the rings began to form about 21,000 years ago. Credit: Laurent Ballesta.

Scale and Precision Make Phenomenon Rare

The newspaper Le Parisien highlighted the discovery after examining the material recorded by the team of divers.

According to the publication, not all underwater phenomena have immediate explanations.

The combination of scale and geometric precision places the underwater circles in an uncommon category within ocean exploration.

Circles, Seafloor, Mediterranean Sea
The research team worked on a barge with a special pressurized chamber, allowing divers to move more quickly toward the seafloor. Credit: Laurent Ballesta.

Discovery May Expand Oceanic Research

The study of the formations may contribute to investigations involving marine biology, geology, and ocean current dynamics.

Depending on future conclusions, the phenomenon may serve as a reference for identifying similar patterns in other seas.

The discovery is already stimulating new expeditions with more advanced technologies to analyze the site.

The precision of the shapes suggests that natural forces may produce surprisingly detailed structures on the seafloor, even though the exact origin remains unknown.

With information from BMC News.

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Jan Verhees
Jan Verhees
14/03/2026 04:46

These can also be seen with Google Earth

Rattanjeet
Rattanjeet
13/03/2026 23:39

To me this phenomenon appears similar to symitrical patterns made in the desert by wind

Gadi
Gadi
13/03/2026 16:56

If 1,400 circles are spread over an area of 250m², they can’t be “giant” or “enormous” by any means. 250 sq. M. Is the size of a fairly big house. Now try to fit 1,400 average car tires on that area. I wish you luck. Say the area is 10×25 m. a tire is 55-60cm in diameter. This makes around 18 tires on 10 m and 45 on the 25 m. This gives 810 tires that touch one another! So, tires are by no means giant or enormous, and the circles in the photos are far from touching one another. So someone here got his numbers all wrong. Which leads me to think this whole thing is fake.

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Romário Pereira de Carvalho

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