If we look at a star in January—when Earth is at one point in its orbit—it will seem to be in a different position from where it appears six months later.

如果我们在一月份观察一颗恒星——那时地球在其轨道上的一个点——它的位置似乎会与六个月后它出现的位置不同。

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The cable would connect with some point on Earth located at the equator, and would allow mass to be transferred to orbit using electricity instead of rocket fuel.

该电缆将连接一些位于地球赤道上的点，这将允许群众被运送到到轨道使用电来代替火箭燃料。

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It has reached the point where this oval orbit is nearest to the Earth.

最近，月球到达了离地最近的椭圆轨道点上。

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The perigee of its elliptical orbit (the closest point it comes to Earth) has actually risen slightly, and is just above 200km.

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Phobos-Grunt launched successfully on its Zenit rocket from the Baikonur Cosmodrome and was dropped off into an elliptical orbit with an apogee (farthest point from Earth) of 345km.

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The Cupola is travelling into orbit attached to the end cone of Node 3 but once in orbit will be transferred to a berthing point that looks straight down to Earth.

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