And this collision was so massive that it launched material into orbit around the Earth.

这个撞击是如此的沉重，使得抛出的物质进入了地的轨道。

The one that surrounds and orbits Earth.

这是一个着地的垃圾堆。

The atmosphere around the Earth is necessary for all living things.

着地的空气对一切生物来说，是不可或缺的。

Together, these jungles form an emerald band that circles our globe.

这些雨林连结起来，形成一条着地的翡翠色绿带。

The International Space Station continues to take on new roles as it whirls around the Earth.

在地转的同时，国际空间站还扮演着新的角色。

To me, we're building like a computing shell around the earth.

对我来说，我们正在建造一个地的计算外壳。

The turning motion of Earth around this line causes day and night.

地这条线的旋转，所以才有了白天和黑夜。

The " equator" is an imaginary line around the middle of our planet, Earth.

“赤道” 是地中心的一条假想线。

The moon is halfway through its orbit around the Earth, and is now on the opposite side of the Earth from the sun.

月亮地的轨道已经过半，现在它到了地与太阳的另一面。

Such asteroids have orbits larger than Earth's own orbit around the sun, and their paths cross with Earth's.

这些小行星的轨道比地太阳的轨道大，且它们的轨道与地的轨道交叉。

Our moon's orbit around Earth is also an ellipse, and Earth is at one focus of that ellipse.

我们的星地的轨道也是椭圆形的， 地是那个椭圆的中心之一。

A small electronic device called thin set gathers the data to shed light on these questions designed to orbit the Earth.

一种名为薄层的小型电子设备收集数据，以阐明这些地行的问题。

They said the area of low orbit around the earth could become unusable in the future unless there are plans to tackle the junk.

他们称，除非制定计划清除太空垃圾，否则地的低轨道区域将来可能变得无法使用。

Together, tethers around Earth and Mars could provide the rapid and cost-efficient transportation backbone that would make space travel affordable.

地和火星的系绳可以提供快速且经济的交通枢纽，这将使太空旅行能被负担得起。

A ring of debris formed around the Earth, sort of like Saturn's rings, unlike Saturn's rings that all collected into our moon.

地形成的碎环，有点像土星环，不像土星环都聚集在我们的卫星上。

Yes. In my question I asked who first came up with the idea that the Earth revolves around the Sun.

是的。在我的问题中，我问谁第一个提出地太阳转的想法。

The magnetic field around the Earth is called the magnetosphere, and like a magnet, it has a north pole and a south pole.

着地的磁场被称为磁层，就像一个磁体拥有一个南极和一个北极。

It would take about a year before thousands of satellites orbiting the planet would come crashing down and burn up in the atmosphere.

大约一年之后，成千上万颗地行的卫星会坠毁并在大气层中燃烧。

The basic thinking was that the Moon, Sun, and stars were affixed to crystal spheres that spun around the Earth at different rates.

他们基本的想法是，月亮、太阳和星星都被固定在一个以不同速率地旋转的水晶天上。

When this happens, sunlight shines onto the Earth and passes through the atmosphere that is all the way around the edge of the Earth.

届时，阳光照射到地表面并穿过一直在地边缘的大气层。