Shockingly, in about 1 percent of their simulations, Mercury's orbit changed so drastically that it could plunge into the Sun or collide with Venus.

令人震惊的是，在大约 1% 的模拟中，水星的轨道发生了如此剧烈的变化，以至于它可能会坠入太阳或与金星相撞。

Because the moon's orbit changes throughout the year, about twice a year the moon's orbit will match up with the Earth's orbit enough to cause a lunar eclipse.

因为月球轨道一年四季都在变化，一年大约有两次月球轨道和地球轨道会切合地产生月食。