Energy & Green Tech

Wave-powered SeaRAY preps for Hawaii trial

Offshore industries, like marine research, fish farming, and mineral mining, often rely on big ships with large crews. Without clean energy to power these vessels, each trip out to sea and back to shore is not only expensive ...

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China's drone carrier hints at 'swarm' ambitions for Pacific

Officially it is just a research vessel, but China's newly unveiled drone carrier is a clear sign Beijing is rushing to deploy an autonomous swarm of unmanned devices in its push for military supremacy in the Pacific Ocean.