奥尔特云是一个由粉尘和冰组成的庞大云带，据信它距离太阳约一光年，许多穿越我们太阳系的彗星都来自那里。
The Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.
他们提出，在这颗行星的轨道上，它会定期地进入奥特云，扰乱那里很多彗星的轨道，并且使得其中一些彗星掉落到去往地球的方向上。
They suggest that during its orbit it would regularly enter the Oort cloud, jostling the orbits of many comets there and causing some to fall toward Earth.
它看起来像是来自我们知道的关于彗星的那里。
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