A popular UFO-reporting app called Enigma has recently gained a lot of attention for reporting thousands of mysterious underwater sightings, known as Unidentified Submersible Objects (USOs), along the U.S. coastlines. Since its launch in 2022, Enigma has recorded around 30,000 total UFO sightings, but since August 2025, more than 9,000 of those were underwater or near major bodies of water. These USOs are described as fast-moving objects capable of changing direction instantly and even traveling between air and water — a phenomenon called “transmedium” movement. The states with the most reports are California and Florida, which have the largest coastal populations.
Experts and government officials are increasingly interested — and concerned — about these sightings. Some, like author Kent Heckenlively, believe the sightings may represent technology or phenomena we don’t yet understand, while others, like retired Navy Rear Admiral Tim Gallaudet, warn that these unknown objects could pose national security risks. Gallaudet points to Pentagon footage showing unidentified objects moving in ways that seem impossible for human-made technology, suggesting the government may not be sharing everything it knows.
Despite skepticism, many see Enigma’s crowdsourced approach as a step toward greater transparency about unidentified aerial and underwater phenomena. Heckenlively, though doubtful about aliens, argues that public data and openness can pressure the government to reveal more. He compares transparency to “sunlight,” saying it’s the best way to expose hidden truths and corruption.