Saturn's Moon Dione May Have Had Active Subsurface Ocean, Cassini Photos Suggest

June 10, 2013 8:07 PM

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Saturn's Moon Dione May Have Had Active Subsurface Ocean, Cassini Photos Suggest

The plain-looking Saturn moon Dione may have once had a geologically active subsurface ocean, new images from NASA's Cassini spacecraft reveal.

Images of Dione's 500-mile-long (800 kilometers) mountain Janiculum Dorsa suggest that the moon could have been a weaker copycat of Enceladus, Saturn's icy geyser moon.

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