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NASA's New Horizons Returns Images of the Canyons of Pluto's North Pole (examiner.com)
MarkWhittington writes: NASA's New Horizon space probe, which flew by Pluto last July, continues to send data and images that amaze and awe. The space agency released an image of Pluto's North Pole taken by the probe's Ralph/Multispectral Visible Imaging Camera (MVIC). The image shows, as has previous images of other regions of the so-called dwarf planet, that Pluto is a diverse world with an active geology. The North Pole of Pluto is characterized by long canyons that are covered in yellow methane ice. The canyons show how the dwarf planet had, and perhaps still has active tectonics..
To break up the usual parade of strained jokes on science articles, how bout posting your favorite cool new thing that we learned from New Horizons? To start...
Pluto has a large mass of frozen nitrogen on its surface that supports many "hills". These may be composed of water ice (less dense than N ice) that float on the slowly shifting nitrogen ice "sea" like an iceberg!