(NewsNation) — More than a decade after finding an unusual object at the bottom of the Baltic Sea that some call an underwater UFO, explorer Dennis Asberg is still waiting for answers.
Since the Ocean X Team founder’s initial discovery in 2011, theories have been flying about what the object could be.
“I have thought about that 10 years now, more than that. What can it be, really?” Asberg told NewsNation Special Correspondent Ross Coulthart this week.
That’s the question Coulthart digs into during this week’s episode of “Reality Check.”

“It’s a 60-meter diameter round thing that looks like it’s separated from the bottom. You have this track on the bottom also, like 1,500 meters. You have these angles. You have these holes,” he said. “And see lots of strange things. It’s like bone material, something has bone on it. It has been upheated.”
While not much is known about the object, various theories of its origin have been offered.
Those range from remains from the lost city of Atlantis or a crash-landed UFO to more practical theories such as built-up rock sediment.

During their expedition, Asberg tells NewsNation he noted strange occurrences with their equipment when they were investigating the object.
“The first time we were out there, we noticed that we had problems with our equipment. The ROV did not work properly. And I remember when Stephen [Asberg’s teammate] was coming up and explained for me about taking samples,” Asberg said. “He [Stephen] said also, ‘Dennis, you know, this is something strange because usually we have four to five Celsius plus down there.’ But now Dennis was zero. I have never experienced that before.”
One thing is certain: The discovery has led to more questions than answers.
“I think about it every day since that day. It fascinates me,” Asberg said.
Watch “Reality Check” with Ross Coulthart on Saturdays at midnight ET / 11 p.m. CT on NewsNation.
Extended episodes can be viewed on NewsNation’s YouTube page.