Research by the U.S. Navy has developed a new passive sonar method that could revolutionize stealth underwater drones.
An underwater drone passes inside the seawater during a demonstration at a Marina in the southern resort of Ayia Napa, Cyprus, Monday, Feb. 24, 2025. Credit: AP Photo/Petros Karadjias An ...
Underwater drones are seen inside the seawater next of an assist boat with two personnel, during a demonstration at a Marina in southern resort of Ayia Napa, Cyprus, Monday, February. 24 ...
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