Grology

With Video: Ice flows, haze offer more clues to Pluto’s geology

Exotic ices flow across Pluto’s surface, and its reddish color appears to come from a thin haze, the latest report from the New Horizons spacecraft reveals. The new finds have set scientists scrambling to construct the story of how Pluto’s climate and weather work. A stunning image of the dwarf planet in silhouette, released July 24, reveals a layer of ...

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