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Via the Financial Times:
Lockheed Martin revealed on Tuesday it is on the brink of a technological breakthrough that could lead to the US developing military aircraft that can fly six times the speed of sound.
Marillyn Hewson, Lockheed’s chief executive, outlined the proposed hypersonic aircraft as she also disclosed the company was working on a laser weapon that could be used on the battlefield.
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Via Seattle Post Intelligencer:
The 51-foot Echo Voyager uses a hybrid rechargeable system to run for months autonomously, and can also be launched and recovered without the kind of support ships usually necessary for unmanned, undersea vehicles, or UUVs