Mysterious UFO-like object discovered by Swedish researchers at the bottom of the Baltic Sea
- Korca Boom
- Jun 17
- 4 min read
Scientists believe they have finally determined the truth behind one of the greatest deep-sea mysteries in the world.
In 2011, Swedish explorers Peter Lindberg and Denis Asberg were searching for treasure in the Baltic Sea when their sonar radar detected a stunning structure.
Lying nearly 90 meters below the surface, the object was circular with a diameter of approximately 60 meters, according to Discovery Channel.
Perhaps most bizarrely, the shape was marked with angular lines, leading many to compare it to the iconic Star Wars spaceship, the Millennium Falcon.
Even more astonishing was the fact that it appeared to contain “stair-like formations” leading to a dark hole, as well as another unknown object about 200 meters away.
Speaking about the discovery at the time, Asberg told Sweden’s TV4: “We were really surprised and confused.”
“We were thinking, ‘What have we found here?’ This is not a wreck. At the time, we were sure there was a natural explanation.
“We wanted to investigate it further and decided to keep it secret. We contacted geologists and marine biologists, and when they said they had never seen anything like it, of course, more thoughts came to mind. It might be something truly remarkable that we’ve discovered.”
The mysterious nature of the find sparked a flood of speculation, with some internet users suggesting it could be the remains of an ancient civilization, others convinced it was the shell of a UFO, and still others claiming it might have been a hidden Nazi weapon or the entrance to a secret World War II bunker.
For his part, Lindberg was eager to share his own ideas about what the object could be: “It has these very strange staircase formations, and if it was built, it must have been built tens of thousands of years ago, before the Ice Age,” he said in a 2012 radio interview, as quoted by NBC.
For context, the peak of the last Ice Age occurred around 20,000 years ago.
“If this is Atlantis, that would be quite amazing,” Lindberg added, referring to the legendary lost continent.
However, he also acknowledged, more prosaically, that it could simply be a natural formation, such as a meteorite that fell to Earth or an underwater volcano.
While most researchers concluded that the anomaly was made of rock, others insisted that it was actually composed of metal.
This latter hypothesis was supported by a claim made by diver Stefan Hogerborn, who was part of Lindberg and Asberg’s Ocean X mission that made the original discovery.
He told reporters that electrical and satellite equipment would stop working whenever they got too close to the object, according to a post on the TechSci blog.
“Everything electric out there, and the satellite phone too, stopped working when we were above the object,” Hogerborn reportedly said.
“Then, when we moved about 200 meters away, it turned back on.”
Meanwhile, geologist Steve Weiner from the University of Texas is believed to have conducted tests on the anomaly, which led him to conclude that it was made of “metals that nature could not reproduce on its own.”
Over the years, the Ocean X team continued to explore the enigma, collecting samples from the site and even, in 2016, producing a documentary about the entire discovery.
Volker Brüchert, a geologist at Stockholm University, is said to have studied some of these samples and stated:“What has been conveniently ignored by the Ocean X team is that most of the samples they retrieved from the seabed are granite, gneiss, and sandstone.”
His analysis led him to insist that there was nothing mysterious about the object.
“I was surprised when I researched the material—I found a large black stone that could be volcanic rock,” he said.
“My hypothesis is that this object, this structure, was formed during the Ice Age, thousands of years ago.”
Göran Ekberg, a marine archaeologist at the Swedish Maritime Museum, acknowledged that the anomaly’s appearance was “strange” because it is “perfectly circular.”
However, he emphasized:“Nature has produced stranger things than this.”
Research undertaken by experts—including geologists, scientists, marine archaeologists, and even planetary geomorphologists—concluded that the Baltic Sea Anomaly is the result of a naturally occurring phenomenon.
The specifics of their theories vary, but they largely agree that it is the remnant of a glacial movement process that occurred during the Ice Age.
The hypotheses include that it may be made of sandstone or basalt—a rock formed from solidified lava as a result of an underwater volcano, notes Discovery Channel.
It could also be a moraine—a mass of rocks and sediments deposited by a glacier, typically forming ridges at its edges.
However, Lindberg, the co-discoverer of the structure, has remained philosophical about the find.
He said:“I’ve been the biggest skeptic; I was kind of prepared to find just rocks. For me, it has been a wonderful experience.”
“I think its shape is very strange. It’s hard to give a clear explanation of exactly what it could be, as different scientists have many different theories.”
“Whatever it is, it’s something we don’t usually find in nature, in the dark and cold depths of the Baltic Sea.”
“KORÇA BOOM”
