Manta Ray, a top-secret submarine prototype weapon of the US, was spotted by Google Maps docked at the Port Hueneme naval base in California on Sunday. After an image of the same went viral, it was deleted and replaced with what multiple social media users believed were "edited" boats. Manta Ray also caught attention for its similarity to a Star Wars vessel, a spaceship seen in the popular Hollywood franchise. The autonomous vessel has been named after the sea creature due to its slick design and ability to anchor itself deep underwater while holding operations in low-power mode, the New York Post reported. Manta Ray has been produced by Northrop Grumman as part of the US Navy project to develop long-range underwater weapons. This sophisticated underwater drone is said to be capable of hibernating on the seafloor for "very long periods" without refuelling. Dr Kyle Woerner, Manta Ray programme manager at the Defense Advanced Research Projects Agency, earlier sa