The rings suddenly hugging Earth would disrupt internal navigation systems of some animals.

突然出现环绕行星环会破坏某些动物内部导航系统。

The GPS satellites orbiting our planet send out time coded messages.

环绕运行 GPS 卫星群传递出时间编码信息。

Astronauts orbiting earth see up to 16 sunrises and sunsets every day.

环绕飞行宇航员每天可以看到多达16次日出和日落。

The answer lies in the way that the moon orbits the earth.

答案就在于月亮环绕运动方式。

Officials said it should reach its target orbit around Earth in the middle of February.

官员们表示，它应该会在二月中旬到达环绕目标轨道。

There's no protocol for a man circling the Earth either, sir.

也没有人类环绕程可循啊 长官。

Ten years ago, two satellites collided adding to the millions of pieces of debris that`s orbiting the earth.

10年前，两颗卫星相撞，增加了环绕数百万块碎片。

The ozone layer is a sort of " belt" around the Earth made up of gaseous molecules.

臭氧层是一种由气体分子组成环绕“带”。

And frankly, it's really cool that we had astronomical satellites orbiting the Earth which could study it!

坦率说，这真很酷，我们有环绕天文卫星，可以供我们进行研究！

The robots maneuvering has brought renewed attention to the growing concern about space junk orbiting our planet.

机器人操控重新引起了人们对环绕太空垃圾关注。

Okay, so I wasn't exactly John Glenn up there, but I've changed; I'm a different man now.

就算我在上面不像约·（美国首位环绕飞行宇航员），但我已经变了，脱胎换骨了。

It's actually taken by one of the astronauts on the Apollo 8 mission that actually circled the Earth.

实际上，这张图是阿波罗8号任务一位宇航员拍下，他们所在飞船实现了环绕飞行。

Space, especially the space directly around our planet, is getting more crowded as more governments and companies launch satellites.

随着越来越多政府和公司发射卫星，太空，尤其是直接环绕空间，变得越来越拥挤。

We already have twenty-four Navstar satellites orbiting the earth, making up what is called the Global Positioning System.

我们已经有24颗环绕运行导航卫星，组成了人们所说全卫星定位系统。

Working across time zones made them understand how astronauts feel as they circle the planet during a typical workday.

跨时区工作，让他们了解到宇航员在典型工作日环绕时感受。

And the furthest distance traveled by one 11,530 kilometers or about 29% of the way around the entire planet!

同时也有跨越距离最远飓风，有一场飓风横跨最远距离是 11530 公里，大约是环绕整个 29%！

This vast forest circling the globe contains a third of all the trees on Earth and produces so much oxygen.

这片环绕着广大森，容纳了上1/3树木，产生了大量氧气。

But did you know that human astronauts were not the first Earthlings to travel in space and circle the moon?

但你知道人类宇航员并不是首个在太空旅行并环绕月公民吗？

But as the authors write, it also marks “the earliest known year by which human migration had encircled the planet.”

但如作者写到，它也是“人类移民环绕已知最早年份。”

In 1962, she faced the national spotlight with a severe stutter, when her husband became the first American to orbit the Earth.

1962年，当她丈夫成为第一个环绕运行美国人时，她以一种严重口吃面对全国聚光灯。