◎UAP Record

Person

Dennis Asberg

Also: Dennis Åsberg

contested civilian status · verified public figure

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The visual record

Illustrations, recordings and archival references — each with its own provenance. A documented source is a starting point for investigation, not a verdict on its explanation.

Interview · source video

Dennis Asberg · 0:49:25

Open the source at the cited time. The episode thumbnail is video packaging, not a photograph of the reported subject.

American Alchemy / Jesse Michels ↗YouTube-hosted preview and player; not relicensed
Interview · source video

American Alchemy · 0:00:00

Open the source at the cited time. The episode thumbnail is video packaging, not a photograph of the reported subject.

American Alchemy / Jesse Michels ↗YouTube-hosted preview and player; not relicensed

Asberg and Peter Lindberg found the Baltic Sea anomaly on side-scan sonar in June 2011 while hunting a champagne wreck, and later dived on it. Geologists who examined samples described natural rock; Asberg maintains the object's shape and effects on equipment are unexplained. He also reports a 1996 sighting in Sweden.

Who

RoleSwedish commercial diver; co-founder of the Ocean X Team that located the Baltic Sea anomaly in 2011
Sidecivilian
Statusverified public figure (does the person exist and hold the stated position — not whether their claims are true)

Interviews and appearances

Claims made

  • Sub-bottom profiling indicates the Baltic Sea Anomaly is a mass separated from the underlying seabed rather than part of a bedrock formation.

    INFERENCE contested 2025

    • 0:49:25 “There's A UFO On The Seafloor!” -Treasure Hunter Dennis Asberg · Dennis Asberg ▶
      How do you know that it's sub-bottom profiling have we done. Mhm. >> Yeah. So, we can see the layers. Mhm. Wow. Yep. Amazing. That's really incredible that it's definitely separated from the So, it is an ob- it's not a geological formation. >>

  • Warships from multiple NATO countries encircled the Ocean X vessel at the Baltic Sea Anomaly site, and Swedish military headquarters later told Asberg they had never been there.

    INFERENCE contested 2025

    • 0:41:06 “There's A UFO On The Seafloor!” -Treasure Hunter Dennis Asberg · Dennis Asberg ▶
      It's NATO. It was French and German and American and British ships around us. >> Yep. And then also a Swedish coast corvette go quite

  • Dennis Asberg reports that the Ocean X team has never taken a radiation measurement at the Baltic Sea Anomaly.

    FACT contested 2025

    • 0:56:52 “There's A UFO On The Seafloor!” -Treasure Hunter Dennis Asberg · Dennis Asberg ▶
      Have you brought a Geiger counter down or measured radioactive activity? >> time. We're going to do. >> You will? Yeah.

Mentioned in the corpus

Passages this record cites, with the stamp of the block each quote sits in.

Named in 1 upload (automatic name matching, 2 mentions)

On the map

Hessdalen automatic measurement station recordings. Open the full map filtered to this record.

Related records

Sites
Baltic Sea Anomaly
Events
Hessdalen lights wave (Norway)Baltic Sea anomaly sonar discovery
Footage
Hessdalen automatic measurement station recordings

Sources on this record

  • 0:49:25 “There's A UFO On The Seafloor!” -Treasure Hunter Dennis Asberg · Dennis Asberg ▶
    How do you know that it's sub-bottom profiling have we done. Mhm. >> Yeah. So, we can see the layers. Mhm. Wow. Yep. Amazing. That's really incredible that it's definitely separated from the So, it is an ob- it's not a geological formation. >>
  • 0:41:06 “There's A UFO On The Seafloor!” -Treasure Hunter Dennis Asberg · Dennis Asberg ▶
    It's NATO. It was French and German and American and British ships around us. >> Yep. And then also a Swedish coast corvette go quite

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