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River networks on Titan point to a puzzling geologic history
For many years, Titan's thick, methane- and nitrogen-rich atmosphere kept astronomers from seeing what lies beneath. Saturn's largest moon appeared through telescopes as a hazy orange orb, in contrast...
View ArticleA new ‘branch’ of math
Over the course of decades or even centuries, Earth’s landscape can appear relatively static, with mountains and valleys seemingly anchored firmly in place. Viewed over a longer timescale, however — on...
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