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Image: Jagged Hills PIA03455

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Original image ‎(2,000 × 1,510 pixels, file size: 304 KB, MIME type: image/jpeg)

Description: The knobby terrain seen throughout the top inset is unlike any seen before on Jupiter's moons. The spires are very icy but also contain some darker dust. As the ice erodes, the dark material apparently slides down and collects in low-lying areas. Over time, as the surface continues to erode, the icy knobs will likely disappear, producing a scene similar to the bottom inset. The number of impact craters in the bottom image indicates that erosion has essentially ceased in the dark plains shown in that image, allowing impact craters to persist and accumulate.
Title: Jagged Hills PIA03455
Credit: NASA Planetary Photojournal [1]
Author: NASA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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