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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: NASA’s Ingenuity Helicopter Grounded for Good

NASA Ingenuity helicopter

After three years of soaring through the ultra-thin skies of Mars, NASA’s autonomous Ingenuity helicopter has finally been grounded for good. While power still flows through the 4-pound (1.8 kilograms) helicopter, recent images revealed that at least one of its rotor blades sustained irreparable damage after its last flight — Ingenuity’s 72nd flight over the … Read more