This cannot be correct unless Unoosa considers aliens to be near-earth objects (like comets and asteroids).
如果外太空司把近地天体(如彗星和小行星)当成“近地物体”的话，那么这个说法才可以说得通。
Stars would stay fixed, but objects like comets, asteroids, and planets moved.
通过这种方法可以观察到，恒星是固定不动的，而像彗星、小行星和行星这样的物体都在移动。
We will learn about strange objects called comets and asteroids, and about mysterious places like the asteroid Belt, the Kuiper Belt, and the Oort Cloud.
我们将学习彗星和小行星奇怪物体，以及一些神秘的地方，如小行星带，柯伊伯带和奥尔特云。
The many impact craters that have and Earth reveal our solar system can be like a shooting gallery, with asteroids and comets regularly striking planets and their companions.
众多撞击留下的深坑让我们的地球和月球表面坑坑洼洼，他们在向我们揭示，太阳系可能是个射击场，小星星和彗星像横飞的子弹一样不断地撞击着行星和他们的卫星。
The many impact craters that have and Earth reveal our solar system can be like a shooting gallery, with asteroids and comets regularly striking planets and their companions.
众多撞击留下的深坑让我们的地球和月球表面坑坑洼洼，他们在向我们揭示，太阳系可能是个射击场，小星星和彗星像横飞的子弹一样不断地撞击着行星和他们的卫星。
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