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Writer Fuel: New “Manta Ray” Drone Glides Through Ocean Undetected

DARPA Manta Ray drone

Engineers have assembled an autonomous underwater drone that the U.S. Defense Advanced Research Projects Agency (DARPA) plans to use for long-range missions in the ocean, pictures show. Dubbed “Manta Ray,” the drone is modeled after filter-feeding fish of the same name with diamond-shaped bodies and wing-like fins. The prototype, designed and built by the aerospace … Read more

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Writer Fuel: A Nuclear Rocket Could Get Us to Mars in 45 Days

Demonstration for the Rocket to Agile Cislunar Operations (DRACO) spacecraft - DARPA

NASA has revealed plans to create a nuclear-powered rocket that could send astronauts to Mars in just 45 days. The agency, which has partnered with the Pentagon’s Defense Advanced Research Projects Agency (DARPA) to design the rocket, announced on Tuesday (Jan. 24) that it could build a working nuclear thermal rocket engine as soon as … Read more