NASA Tests a Robotic Snake That Could Explore Other Worlds By Nancy_A
*Anyone else having a vision of the space slug in Star Wars: The Empire Strikes Back, the creature hiding in a cave in the Hoth asteroid belt that had the Millennium Falcon inside its gut?
They created their first prototype in 2019 and have been making continual revisions. The current iteration of the robot uses auger-like devices on the robot’s exterior to basically allow it to “churn” across the terrain. EELS’ body contains 48 actuators – essentially little motors – that give it the flexibility to assume multiple configurations. Each section has built-in force-torque sensing, working like a kind of skin so EELS can feel how much force it’s exerting on terrain.
The EELS team has tested the robot in several different places, such as the Mars Yard at JPL — which simulates the Martian surface – as well as sandy and snowy environments in California, and even on ice at skating rink. And they’ve even tested in in an environment similar to the vents on Enceladus . Last year, the EELS team lowered the robot’s perception head – the segment with the cameras and lidar – into a vertical shaft called a moulin at Athabasca Glacier in the Canadian Rockies.
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