InSight tests its robot arm


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InSight has unfolded its robot arm and is beginning to use it to photograph the surrounding area to figure out where to place the spacecraft’s ground-sensing instruments.

With a reach of nearly 6 feet (2 meters), the arm will be used to pick up science instruments from the lander’s deck, gently setting them on the Martian surface at Elysium Planitia, the lava plain where InSight touched down on Nov. 26.

But first, the arm will use its Instrument Deployment Camera, located on its elbow, to take photos of the terrain in front of the lander. These images will help mission team members determine where to set InSight’s seismometer and heat flow probe – the only instruments ever to be robotically placed on the surface of another planet.

They are proceeding carefully, so actually deployment might not occur for several months, just make everything goes well.

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