The 'Mole' (left) and seismometer (centre) on the Martian surface

The 'Mole' (left) and seismometer (centre) on the Martian surface
The 'Mole' (left) and seismometer (centre) on the Martian surface
While the 'Mole' (left) hammers, the seismometer (right) will closely monitor any movement.
Credit:

NASA/JPL-Caltech

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