Claims about so-called “underwater alien bases” have moved in recent years from the outer edges of conspiracy culture into more mainstream conversation, including remarks made within U.S. congressional circles. These claims typically center on USOs (Unidentified Submerged Objects)—alleged technologically advanced craft said to travel seamlessly between space, air, and ocean, often at speeds beyond known human engineering capabilities.
Key Claims and Frequently Cited Locations
Malibu, California (Sycamore Knoll)
A 2,000-foot-deep, table-like underwater formation located roughly 6.6 miles off the coast of Malibu—known as Sycamore Knoll—is often cited by theorists as a possible extraterrestrial base. The structure drew attention due to its unusual appearance on Google Earth imagery, which some interpreted as blurred or obscured intentionally.
Congressional Interest
U.S. Representative Tim Burchett has publicly stated that, based on reports he has received, he believes there may be five to six deep-sea bases potentially inhabited by extraterrestrial life. He has argued that the vast, largely unexplored nature of the deep ocean would make it an ideal location for concealment.
Catalina Island, California
The waters surrounding Catalina Island are frequently described in UFO circles as a “hotspot,” with speculation about unidentified aerial and underwater activity.
Guadalupe Island, Mexico
This remote, deep-water region off the Pacific coast of Mexico is also often referenced in discussions of potential hidden underwater installations.
Common Themes in UFO/USO Reports
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Extreme or Physics-Defying Speed: Military personnel and witnesses have described submerged objects moving at speeds that appear to exceed known physical limitations.
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Trans-Medium Travel: Many reports describe craft transitioning instantaneously between air and water without slowing.
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Government Secrecy: Some public officials, including Rep. Lauren Boebert, have questioned whether U.S. authorities may be withholding information about possible “non-human” undersea phenomena.
Skeptical and Scientific Perspectives
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Natural Geological Formations: Scientists and marine geologists contend that features such as Sycamore Knoll are most likely natural seafloor formations or artifacts resulting from incomplete sonar mapping data.
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Imaging and Data Artifacts: Blurred or unusual features in Google Earth and similar platforms are commonly attributed to image stitching errors, resolution limits, or digital rendering inconsistencies rather than intentional concealment.
Scientific Context
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Deep-Sea Discoveries: While alien bases have not been discovered, marine researchers continue to find thousands of previously unknown, often unusual-looking species in deep-ocean regions such as the Clarion-Clipperton Zone.
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Aquarius Reef Base: The only known operational human-built undersea research habitat is the FIU Aquarius Reef Base in the Florida Keys, used for marine science and astronaut training.
In summary, while underwater alien base theories have gained visibility through media attention and political commentary, no verified scientific evidence currently supports the existence of extraterrestrial installations beneath Earth’s oceans.
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