卫星环绕地球转。
——阿诺德·斯班塞·琼斯爵士，英国皇家天文学家，1957(2周后斯巴尼克人造卫星环绕地球)。
Sir Harold Spencer Jones, Astronomer Royal of the UK, 1957 (two weeks later Sputnik orbited the Earth).
很多天文爱好者最初对该领域的研究都是从业余爱好开始的，他们会用双筒望远镜观察星系的变化，观察人造卫星环绕地球运行的规律。
Astronomy enthusiasts often enter this field as hobbyists, using binoculars or a telescope to observe the motion of planets or artificial satellites orbiting the earth.
一颗新的人造卫星被送上了环绕地球的轨道。
这些卫星位于一个十分特殊的轨道，以便它们能每隔24小时环绕地球一周。
The satellites sit in a very special orbit that allows them to circle the Earth once in 24 hours.
因为有卫星的头衔，而且沿椭圆形轨道环绕地球运行，月亮似乎每天平均51分钟返回到天空的同一地点。
Due to the moon's titled and elliptical orbit around Earth, the moon seems to return to the same place in the sky 51 minutes later each day, on average.
例如你在环绕地球的，某一点，这一个卫星。
For instance, you're at a particular position around the Earth, here at a satellite.
月亮上布满了火山口和山川，并不是所有东西都绕着地球转，木星周围有卫星环绕。
There were craters and mountains on the moon, not everything circuited around the earth, Jupiter had moons going around it.
环绕地球的卫星能看到什么，以及相对于宇宙地球的适当的定位，如同我们看到的一样。
What we see here are satellites around the Earth, and the Earth in proper registration against the universe, as we see.
地球轨道是并一直是难得的地点，成群的环绕卫星就是例证。
Earth orbit is and will remain a valuable place, as the swarms of satellites that circle the planet attest.
上月，天文学家宣称已发现最类似地球卫星——其大小为地球的三倍，表面为岩石覆盖，距离其环绕的恒星20光年。
Last month, astronomers announced the discovery of the most Earth-like planet ever found - a rocky world three times the size of our own world, orbiting a star 20 light years away.
泰洛斯1号卫星在两极之间环绕地球运行，每30秒钟拍摄一张照片，如配图中的图像系列所示。
TIROS-1 orbited from pole to pole, snapping photos every 30 seconds, as illustrated in this series of images.
废弃的卫星、航天器脱落的油漆颗粒、星箭分离脱落的零件碎片，这些太空垃圾以每小时几千公里的速度环绕地球急速飞行。
Old satellites, chips of paint and jettisoned rocket stages arehurtling around the world at thousands of kilometres an hour.
环绕月球时，卫星距离地球约372,335公里。
In orbit around the Moon, the orbiter was about 372,335 kilometers from Earth.
解说：一场世界规模的观察交响曲在3 月28 日突然开始了，当时环绕地球的Swift卫星监测到了来自GRB 110328A 的高频伽马射线爆发。
Explanation: A symphony of planet-wide observations began abruptly on March 28 when the Earth-orbiting Swift satellite detected a burst of high-frequency gamma-rays from GRB 110328A.
去年两个人造卫星相撞，留下上百片十公分大小的碎片散布在环绕地球的轨道上。
TWO satellites collided last year leaving hundreds of pieces of shrapnel more than 10cm across orbiting the Earth.
美国宇航局NASA目前正在打算利用激光给环绕在地球周围的太空垃圾来一次大扫除，目的是为了防止他们与卫星发生碰撞。
Nasa is considering using lasers to deflect space junk around Earth and stop it colliding with satellites.
他们把一颗气象卫星送入环绕地球的轨道。
墨子号卫星将每90分钟环绕地球一次。
环绕地球运行的卫星，为科学家提供了浩如烟海的外层空间的资料，相比之下，对地球内部的结构则知之甚微。
Satellites orbiting round the earth have provided scientists with a vast amount of information about conditions in outer space.
月亮被称为卫星，因为它不仅环绕太阳，而且也围绕地球运行。
The moon is called a satellite because it goes round our earth as well as round the sun.
一些人造卫星现在正环绕地球飞行。
气象卫星观测到一个环绕地球的火山灰带。
Weather satellites have observed a ring of volcanic ash girdling the earth.
气象卫星观测到一个环绕地球的火山灰带。
Weather satellites have observed a ring of volcanic ash girdling the earth.
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