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Insight... into the early evolution of terrestrial planets.
HP3 (Heat Flow and Physical Properties Probe)
  • HP3 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