太阳系十大魅力图片:木卫一有张“比萨脸”(8)
水星陨坑
8、水星陨坑
2008年,“信使号”探测器发回一张如同水晶一样透明的水星1536公里(960英里)直径的卡诺里斯陨坑,如图该陨坑伪色彩呈现出橙黄色,信使号证实了水星平滑的平原是远古喷发所形成的。
在这张图片中,陨坑边缘一对较小的橙色“眼镜框”状结构被认为是火山地质构造。在卡诺里斯陨坑中心的明亮“蜘蛛网”状结构,由中心向外辐射。信使号将于2009年9月再次飞过这颗行星。
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