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How Tholins Form
The hazes in Pluto's atmosphere, observed by New Horizons spacecraft on July 14, provide a crucial link between the sunlight-driven chemistry in the upper atmosphere and the reddish-brown hydrocarbons called tholins that rain down and darken the surface.
How Tholins Form
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How Tholins Form
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Eyes on Pluto Flyby Simulation Previews
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