
The troubled “mole” on NASA’s InSight Mars lander is moving again, even as scientists working on the robot’s seismometer ponder new marsquake mysteries.
InSight touched down in November 2018 on a quest to understand the interior of the Red Planet. Two of its crucial tools for that task were a burrowing heat probe nicknamed the mole and a super-sensitive seismometer to study motion within the planet.



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