月球壁纸
by NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
NASA Image Library · 公有领域（Public Domain）
关于这张图
This image of Charon was taken by New Horizons' Long Range Reconnaissance Imager (LORRI) at 4:23 UT on July 9, 2015, from a range of 3.9 million miles (6.3 million kilometers). It reveals fascinating detail, never before seen, on the surface of Pluto's giant moon, which has a diameter of 750 miles (1208 kilometers). The dark north polar region, which has been seen for several weeks on approach, is still prominent, but numerous bright spots, scattered over Charon's surface, are now also visible. It is possible that many of these spots are bright icy material excavated from Charon's subsurface b…
