土星的G环

跨越地平线

Saturn's G ring glows like a neon garland in this lovely narrow angle camera image from Cassini. The comparison between the diffuse outer boundary and the sharp inner edge of this ring, which consists of fine, dust-sized icy particles, is particularly noteworthy. Close Cassini views such as this should provide ring scientists with clues about how this ring is produced and confined.
大意：
土星的G环像一道彩虹，在卡西尼号的这个小巧的狭窄角度照相机拍摄的i 。比较在外环和边缘之间, 包括尘土大小的冰冷微粒, 是特别醒目的。科学家要搞明白这个环是怎样形成的。

拍摄日期：2005-12-01

夜猫子

第一时间的照片，第一时间的翻译！不错！