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Ice cloud heralds fall at Titan's south pole

(Phys.org) —An ice cloud taking shape over Titan's south pole is the latest sign that the change of seasons is setting off a cascade of radical changes in the atmosphere of Saturn's largest moon. Made from an unknown ice, ...

dateApr 11, 2013 in Space Exploration
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How a sunset comet came to be

(Phys.org) —For a comet, visiting the sun is risky business. Fierce solar heat vaporizes gases long frozen in the fragile nucleus, breaking up some comets and completely destroying others.

dateMar 18, 2013 in Space Exploration
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