Uranus looms well over 2.5 light-hours away from Earth tonight. In contrast, the moon - our nearest celestial neighbor - resides only 1.3 light-seconds away.
今晚天王星距离地球超过2.5光小时远。相对的,月球——我们最近的邻近天体——距离地球只有1.3光秒远。
Uranus looms well over 2.5 light-hours away from Earth tonight. In contrast, the moon - our nearest celestial neighbor - resides only 1.3 light-seconds away.
今晚天王星距离地球超过2.5光小时远。相对的,月球——我们最近的邻近天体——距离地球只有1.3光秒远。
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