河系

The earth is one of the planets in the Galaxy.

地球是银河系星球之一。

These patterns combined with the stellar nucleosynthesis theory enable us to study the formation and evolution of the Milky Way.

结合 恒星核合成理论，可以了解银河系形成和演化过程。

Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun.

在银河系西螺旋臂末端那片未曾标明寂静虚空.悬挂着一颗不被人注意小小黄色太阳.

A satellite galaxy of our Milky Way, the Small Magellanic Cloud is wonder of the southern sky, named for 16th century Portuguese circumnavigator Ferdinand Magellan.

我们银河系一个伴星系——小麦哲伦云——是南方天空奇景。以16世纪著环游世界葡萄牙人麦哲伦命。