Penitentes as the origin of the bladed terrain of Tartarus Dorsa on Pluto

@article{Moores2017PenitentesAT,
  title={Penitentes as the origin of the bladed terrain of Tartarus Dorsa on Pluto},
  author={John E. Moores and Christina L. Smith and Anthony Domenick Toigo and Scott D. Guzewich},
  journal={Nature},
  year={2017},
  volume={541},
  pages={188-190}
}
Penitentes are snow and ice features formed by erosion that, on Earth, are characterized by bowl-shaped depressions several tens of centimetres across, whose edges grade into spires up to several metres tall. Penitentes have been suggested as an explanation for anomalous radar data on Europa, but until now no penitentes have been identified conclusively on planetary bodies other than Earth. Regular ridges with spacings of 3,000 to 5,000 metres and depths of about 500 metres with morphologies… 
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