G’day, mate! Ocean-crossing robot reaches Australia

A robotic wave glider recently pulled into an Australian bay, marking the end of a record-setting 9,000-nautical-mile journey in the name of science and technology.

The Papa Mau robot is one of four wave gliders launched from San Francisco on Nov. 17, 2011. En route, it weathered gale-force winds, fended off sharks and gathered an unprecedented amount of data on weather and ocean conditions that is now available online for anyone to use.