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

也没有人类环绕地球的章程可循啊 长官。

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

突然出现的环绕地球的行星环会破坏某些动物的内部导航系统。

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地球的目标轨道。

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的环绕地球的“带”。

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

机器人操控起了人们对环绕地球的太空垃圾的关注。

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，增加了环绕地球的数百万块碎片。

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

坦率地说，这真的很酷，我们有环绕地球的卫星，可以供我们进行研究！

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

答案就在于月亮环绕地球运动的方式。

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

随着越来越多的政府和公司发射卫星，太空，尤其是直接环绕地球的空间，变得越来越拥挤。

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号任务的一位宇航员拍下的，他们所在的飞船实现了环绕地球的飞行。

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

但如作者写到的，它也是“人类移民环绕地球的已知最早年份。”

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

环绕地球运行的 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.

环绕地球飞行的宇航员每可以看到多达16次的日出和日落。

A ring of reddish orange light surrounding the Earth.

环绕地球的红橙色光环。

The Global Positioning System uses 24 satellites that circle the Earth.

全球定位系统使用 24 颗环绕地球的卫星。

Was there some other vessel waiting for them in orbit around Earth?

是否有其他船只在环绕地球的轨道上等着他们？

Basically highways that zoom around Earth.

基本上是环绕地球的高速公路。

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的工作日环绕地球时的感受。

And models show that the tropical rain band that surrounds the earth would likely shift further south.

模型显示，环绕地球的热带雨带可能会向南移动。

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颗环绕地球运行的导航卫星，组成了人们所说的全球卫星定位系统。