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A ‘super Grand Canyon’ on Pluto’s moon Charon

Pluto’s largest moon, Charon, is home to an unusual canyon system that’s far longer and deeper than Arizona’s Grand Canyon. As far as NASA’s New Horizons scientists can tell, the canyon informally named Argo Chasma has a total length of approximately 430 miles — one and a half times the length and five times the depth of the Grand Canyon on Earth.

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Pluto’s “Twilight Zone” reveals its secrets

NASA’s New Horizons spacecraft took this stunning image mere minutes after closest approach on 14 July 2015. Seen here, sunlight filters through and illuminates Pluto’s complex atmospheric haze layers over portions of the nitrogen ice plains informally named Sputnik Planum, as well as mountains of the informally named Norgay Montes.

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New Horizons’ best close-up of Pluto’s surface

A mosaic strip just released by the New Horizons team now includes all of the highest-resolution images taken by the NASA probe. The mosaic affords scientists and the public the best opportunity to examine the fine details of the various types of terrain on Pluto, and determine the processes that formed and shaped them.