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。

Geostationary satellites orbit the Earth at a speed that matches the planet's rotation.

地球同步卫星以与地球自转速度一致的速度绕地球运行。

NASA has satellites orbiting the earth that measure tree heights from space.

美国国家宇航局有绕地球运行的卫星，从太空中测量树的高度。

A NASA satellite orbiting over Portugal took photographs that reveal the effects of pollution from ships.

葡萄牙上空运行的一颗美航天局卫星拍摄的照片揭示了船舶污染的影响。

The Long March-4B rocket has successfully put into orbit the satellite, which is jointly developed with Brazil.

长征四号乙运载火箭成功地将中巴共同研制的卫星送入预定轨道。

So in 2029... Apophis will come closer to us than our own communication satellites orbiting the Earth.

因此在2029年… … 阿波菲斯将会比绕着地球运行的通讯卫星更靠近我们。

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，我们有环绕地球的天文卫星，可以供我们进行研究！

At any given time, there are several GPS satellites orbiting overhead at a distance of about 11,000 miles.

在任何一个特定时间，总有若干颗全球定位系统的卫星在11000英里的高空绕地球运行。

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。

Ten second trivia: The International Space Station and many other satellites orbit within what layer of the Earth's atmosphere?

“十秒小常识”时间到。国际空间站和许多其他卫星的轨道是在地球大气层的哪一层呢？

Different types of satellites orbit on different highways.

不同类型的卫星在不同的高速公路上运行。

Hundreds or even thousands of satellites orbiting the Earth.

数百甚至数千颗卫星围绕地球运行。

The GPS is made up of satellites orbiting high above the Earth.

GPS由地球上空轨道的卫星组成。

It is also exciting for her parents, immigrants from Guatemala who can proudly say their daughter helped build a satellite orbiting the earth.

这也让她的父母感到兴奋，来自危地马拉的移民自豪地说，他们的女儿帮助建造了一颗绕地球运行的卫星。

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，成千上万颗围绕地球运行的卫星会坠毁并在大气层中燃烧。

The Soviets had, only months earlier, launched the first orbiting earth satellite, Sputnik One.

就在几个月前， 苏联发射了第一颗轨道地球卫星 Sputnik One。

One of NASA's five active missions called MAVEN involves a satellite orbiting Mars that took more than ten months to get there from earth.

美国宇航局5项地球科学任务之一的MAVEN是一枚绕火星轨道的卫星, 它用了10个多月时间才到达那里。

Ten-second trivia: The International Space Station and many other satellites orbit in what layer of Earth's atmosphere?

十秒小知识：国际空间站和许多其他卫星在地球大气层的哪一层运行？

GPS, the global positioning system which gives us directions with the help of satellites orbiting the Earth... instead, have a conversation with someone - ask for directions.

GPS, 也就是全球定位系统，它通过环球卫星帮助我们寻找方向。以后我们应该开口向他人问路。

An American satellite orbiting above known as Vela Hotel 6911 detected a bright double flash of light below that seemed to be indicative of a nuclear explosion.

一颗名为“船帆座旅馆 6911”的美国卫星在上空探测到下方有明亮的双重闪光，似乎是核爆炸的迹象。