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Something dark is spreading across the surface of Titan, and we may finally have some idea what it is.
Titan, Saturn's largest moon, is the only other object in our solar system (besides Earth) known to have liquid on its surface. Frigid seas of methane and ethane fill depressions on the moon like water fills in lakes and oceans on Earth. In regions near Titan's equator where those liquids have evaporated, researchers have spotted dark smears. Without a close-up view of those smears, however, it's difficult to know what they're made of. But researchers suspect the features function a great deal like rings in a bathtub, where solids that were once dissolved in a liquid are left behind as that liquid evaporates. Now, there's a new piece of evidence bolstering this theory.
Formations - Earth - Solids - Liquid - Chamber
When bathtub ring-style formations happen on Earth, they result from solids "dropping out" of a liquid as it evaporates. In this chamber,...
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I find it extremely funny when people keep voting and expecting the government to change!