月球壁纸
by Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing: Björn Jónsson (CC BY 3.0)
NASA Image Library · 公有领域（Public Domain）
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Jupiter's moon Europa was captured by the JunoCam instrument aboard NASA's Juno spacecraft during the mission's close flyby on Sept. 29, 2022. The picture is a composite of JunoCam's second, third, and fourth images taken during the flyby, as seen from the perspective of the fourth image. North is at the top. The resolution of images ranges from just over 0.5 to 2.5 miles per pixel (1 to 4 kilometers per pixel). As with our Moon and Earth, one side of Europa always faces Jupiter, and that is the side of Europa visible here. Europa's surface is crisscrossed by fractures, ridges, and bands, wh…
