Credit: NASA/SCIENCE PHOTO LIBRARY

Restrictions: Editorial use only

Caption: Hedgehog robot. Hedgehog robot performing a type of escape manoeuvre, launching itself vertically out of a sandpit in microgravity. Researchers at NASA's Jet Propulsion Laboratory have developed the hedgehog robot concept to explore the rugged, microgravity environments of comets and asteroids. Instead of rolling around on wheels, the Hedgehog design has three flywheels on the inside of a cube. By spinning these flywheels and then very quickly applying the brake, momentum is transferred from the fly wheels, causing Hedgehog to either hop, or tumble, or perform small adjustments. The robot can function irrespective of orientation, and can negotiate irregular terrain in microgravity where conventional wheeled rovers would fail.

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Hedgehog robot

K005/2991 Rights Managed

Downloadable master

Duration: 00:00:10.1

Frame size: 1280x720

Frame rate: 30

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 206.3M

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Codec: H.264

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