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1·The Oort Cloud is thought to extend about 1 light year from the Sun.

欧特云团距太阳1光年距离。

2·The other six hail from the Oort Cloud more than 5, 000 times farther out.

其他六个产生于又远出5000多倍的奥尔特星云。

3·A Nasa graphic which illustrates how the Oort Cloud surrounds our solar system.

这幅美国宇航局的图示说明了奥特云如何包围着我们的太阳系。

4·This is still well within the Oort cloud, whose boundary is estimated to be beyond 50,000 AU.

据估计，奥尔特云的边界应在50,000天文单位外，因此该天体依然位于奥尔特云内。

5·Our solar system is surrounded by a vast collection of icy bodies called the Oort Cloud.

我们的太阳系被一大片冰体物质所包围，这就是所谓的欧特云团(Oort Cloud)。

6·Tyche is the nickname given to a hypothesized gas giant planet located in the Solar System's Oort cloud.

幸神星是太阳系奥尔特云内的一颗假设的气态巨行星的昵称。

7·Neither Kirkpatrick nor Wright think Nemesis is disrupting the Oort cloud and sending comets towards Earth, however.

然而，不论是克里克·帕特里克还是赖特，他们都不认为“复仇者”正在扰乱欧特云团并将彗星抛向地球。

8·Normal comets fall into the inner regions of the solar system from icy reservoirs in the distant Kuiper belt and Oort cloud.

通常来说，彗星来自距离遥远且冰天雪地的柯伊伯带和奥尔特星云然后掉入太阳系中的内层区域。

9·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.

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。

10·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。