Massive Robotic Sub Can Carry Out Months-Long Underwater Missions

Boeing Echo Voyager
Echo Voyager, Boeing’s latest unmanned undersea vehicle (UUV), can operate autonomously for months at a time thanks to a hybrid rechargeable propulsion power system.
(Image credit: Boeing)

A new unmanned robotic submersible designed by aerospace giant Boeing can operate autonomously underwater for months at a time, according to company representatives.

The 51-foot-long (15.5 meters), bullet-shaped Echo Voyager was unveiled earlier this month, and is Boeing's latest unmanned undersea vehicle. The Echo Voyager is designed to explore the deep sea, and the vehicle's new hybrid rechargeable power system allows it to operate for months underwater without needing to stop for fuel.

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Denise Chow
Live Science Contributor

Denise Chow was the assistant managing editor at Live Science before moving to NBC News as a science reporter, where she focuses on general science and climate change. Before joining the Live Science team in 2013, she spent two years as a staff writer for Space.com, writing about rocket launches and covering NASA's final three space shuttle missions. A Canadian transplant, Denise has a bachelor's degree from the University of Toronto, and a master's degree in journalism from New York University.