Eye of the Sahara撒哈拉之眼
Eye of the Sahara撒哈拉之眼
Giant rings of rock in the Mauritanian desert, about 40 km wide, that look like a huge bull’s-eye from space. Wind and rain wore down a rocky dome to make them.
毛里塔尼亚沙漠里的巨大岩石圆环，直径约40公里，从太空看像一个巨大的靶心。它是风雨把一座岩石穹丘慢慢磨出来的。
- Length长度
- 40 km40 千米
Fun fact趣味知识From the ground it is hard to notice, but astronauts use it as a landmark to know where they are flying!站在地面上很难发现它，可宇航员却把它当作路标，看看自己飞到哪儿了！