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4-legged Korean robot runs full marathon on single charge

KAIST researchers said the robot used a single battery charge and finished in 4 hours, 19 minutes and 52 seconds.

Summary by The Korea Times
In the world of legged robotics, endurance has long been the ultimate hurdle. While four-legged machines can backflip, negotiate rubble and scale staircases with uncanny agility, their high-performance motors typically drain battery reserves in less than an hour. But along the rural stretches of North Gyeongsang Province, a dog-like machine spent over four hours trotting past orchards and cheering spectators to rewrite the limits of mechanical s…

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A paper detailing the world's first record of a domestically produced quadruped robot (robot dog) completing a full marathon has been published in the main edition of the international academic journal Nature. This marks the first time that domestic robot research has been featured in the main edition of Nature. Lion Robotics, a startup founded by KAIST faculty, published the paper titled "A quadruped robot," which describes the long-distance dr…

(Seoul = Yonhap News) Reporter Lee Joo-young = A four-legged robot developed by a domestic research team completed a full 42.195 km marathon course on a single battery charge. This robot...

·Seoul, Korea (the Republic of)
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A paper on a domestically developed robot dog that completed a full-course marathon for the first time in the world has been published in the scientific journal *Nature*. KAIST announced that the long-distance driving technology and actual marathon completion results of the quadruped robot "RAIBO2," developed by Professor Je-Min Hwang's research team in the Department of Mechanical Engineering, have been published in the main issue of *Nature*.

The RAIBO2 quadriped automaton, shaped like a robot dog, completed the Sangju Marathon in less than four and a half hours with a single load.

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Scientific American broke the news on Wednesday, September 23, 2026.
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