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一、引起关注的背景数千年来,人类对自己生存的空间产生过各种遐想,编织成美丽的传说。近百年来,特别是当人类跨入宇航时代并步入太空的时候,才真正有机会从地球以外来俯视我们这颗星球的全貌。人类终于知道自己生存在太阳系中一颗不大的普通的行星上,它有一个天然卫星———月
First, the background that has attracted attention For thousands of years, mankind has produced all sorts of delusions about the space where he lives, and weave it into beautiful legends. In the past 100 years, especially when human beings stepped into the aerospace era and stepped into space, they really had the opportunity to look beyond the earth to see the full picture of our planet. Humans finally know that they are living on a small, ordinary planet in the solar system. It has a natural satellite.