“Navy Ship & Submarine Encounters” refers to the category of reports in which UAP (Unidentified Anomalous Phenomena) are alleged to have interacted with U.S. Navy surface ships or submarines. The significance of this entity lies in its potential implications for naval operations, national security, sensor integrity, and maritime safety. Verified instances of UAP encounters involving Navy vessels raise questions about how phenomena are detected, tracked, and assessed beneath or just above the waterline.

Although no signals are currently on record for this topic, its importance is underscored by multiple independent Navy testimonies, recorded sensor data, and ongoing investigations into anomalous events at sea.

Within public-source material, several on-record facts are relevant:

• Naval crews have reported objects observed visually and registered by radar or infrared sensors while operating near or on the ocean surface. For example, the USS Theodore Roosevelt carrier strike group logged encounters during 2014-2015 that were captured both visually and with sensor corroboration. - In 2019, the USS Omaha and its associated strike group reportedly experienced multiple objects of unknown shape in coordinated formations, with some objects described as descending into the ocean without visible splashes. - An incident aboard the USS Reagan involved personnel who witnessed a large, luminous orb hovering above the flight deck. There are attributed claims beyond what is definitively proven:
• Witnesses assert that some UAPs exhibited trans-medium behavior (i.e., moving between air and water) without detectable propulsion or exhaust signatures. - Crews have claimed that standard military tracking systems failed to account for the maneuverability of these objects, suggesting performance beyond known human or adversarial platforms. Outstanding uncertainties persist:
• Few incidents have yielded physical artifacts or empirically retrievable material.
• Many reports depend heavily on human observation and interpretation under challenging conditions (night ops, poor visibility, sensor limitations).
• The possibility that some encounters involve misidentifications (e.g. drones, marine drones, optical illusions) remains viable in absence of conclusive evidence.

The investigative ecosystem around this topic includes internal Navy logbooks, the Ship Nautical Or Otherwise Photographic Interpretation and Exploitation (SNOOPIE) teams (as named in certain encounter reports), and oversight from U.S. governmental anomaly resolution offices. As new data becomes available—sensor logs, recovered material, multi-platform tracking—it may shift what is verified versus speculative.