Dennis and Peter are most known for their astonishing finding of the Baltic Sea Anomaly on 19th June 2011 which undoubtedly fits as a case for the X-files.
A circular object, 60 m in diameter, the wingspan of a Boeing 747, resting 90 m below the Baltic Sea, and it looks like an underwater UFO. Dennis and Peter aren’t specialists in UFOs, nor have they argued that their finding is an alien spacecraft but the mystery surrounding the object is mesmerizing to, say the least, and the more they have investigated the case, additional questions about the nature of their discovery has surfaced.
Dennis Åsberg & Peter Lindberg’s webpage: http://www.oceanexplorer.se/