月球是地球的卫星。
NASA 计划以其未来大部分逃离地球的载荷（特别是前往月球和火星的）来运载立方体卫星。
NASA plans for most of its future Earth-escaping payloads (to the moon and Mars especially) to carry Cube Sats.
地球独特而巨大的卫星——月球，在稳定地球旋转轴的倾角方面发挥了关键作用。
Earth's unique and massive satellite, the Moon, plays a crucial role in stabilizing the obliquity of Earth's rotational axis.
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