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Instrument Deployment Arm and Camera
HP3 (Heat Flow and Physical Properties Probe)
has a self-penetrating "mole" that burrows down to five meters below the surface(flown, but not operated, on Beagle-2).
Previously selected for NetLander, ExoMars and SELENE-2 payloads.
It trails a tether containing precise temperature sensors every ~10 cm to measure the temperature profile of the subsurface.
Together with measurements of thermal conductivity, this allows a precise determination of the amount of heat escaping from the planet's interior.
Contributed by DLR.
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Last Updated: 15 Jul 2014