月球壁纸
by Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Thomas Thomopoulos © CC BY
NASA Image Library · 公有领域（Public Domain）
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This look at the complex surface of Jupiter's moon Ganymede came from NASA's Juno mission during a close pass by the giant moon in June 2021. At closest approach, the spacecraft came within just 650 miles (1,046 kilometers) of Ganymede's surface. Most of Ganymede's craters have bright rays extending from the impact scar, but about 1 percent of the craters have dark rays. This image taken by JunoCam during the close Ganymede pass shows one of the dark-rayed craters. The crater, named Kittu, is about 9 miles (15 kilometers) across, surrounded by darker material ejected during the impact that fo…
