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These craft are used by the Navy and by NOAA for long-duration, wind-powered, solar-assisted autonomous missions. A Saildrone-style USV can: Operate months at sea with no crew Use wind for propulsion + solar for electronics Patrol coastlines Conduct intelligence, surveillance & reconnaissance (ISR) Collect meteorological and oceanographic data Transmit everything via satellite in real time
Former NASA Ames Director Pete Worden explains how the interstellar propulsion technology from James Cameron's Avatar is now becoming a real engineering plan. Is it going to be ready anytime soon? Probably not, but scientists have kicked off a major effort to figure out how to get there.