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Riverbeds and Lakebeds Discovered on Saturn's Titan

Preliminary analyses of images from the Huygens lander suggest that methane rain, evaporating lakes, and flowing rivers likely exist on Saturn's moon Titan. A snaking, branching riverbed is visible as a dark channel near the top of this image. A dark lakebed is also identified across the bottom. Both features were likely dry at the time the image was taken, but contained liquid methane in the past.