我们的星球缩小了。
地球有一个卫星。
Smallest Planet Has Density of iron.
最小行星密度与铁相当。
Scientists already suspect the red planet has water.
科学家已经猜测这颗红色的行星上有水。
The planet has been through a lot worse than us.
地球经历过的糟糕的事比我们多多了。
In a solar system, each planet has its own sine wave.
在一个太阳系中，每颗行星有着各自的正弦波。
Fortunately, the planet has not yet reached that impasse.
幸运地是，我们的星球还未达到那样的僵局。
And then the planet has to have the right surface gravity.
如此以来，这个星球表面就有一定的重力存在。
The next step for astronomers is to find out if the diamond planet has rings.
下一步天文学家试图找到这颗钻石行星是否有行星环。
This planet has three suns, with the main star similar in mass to our own sun.
这颗行星有三个太阳，主恒星质量与我们的太阳相似。
VcThe next step for astronomers is to find out if the diamond planet has rings.
宇航员下一步就要去找找，看看钻石行星上有没有戒指。
The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen.
这颗行星有相对较薄的大气层，主要由氮气和氧气组成。
This monster planet has been named POLYPHEMIS, for the great cyclops of Greek myth.
这个大怪物被命名为希腊神话中的巨人——波吕裴摩斯。
Whereas a handful of Western countries were once at it, a whole planet has started to join in.
鉴于一小批西方国家曾是如此，整个地球上的国家都开始加入其中。
Every other person on the planet has his first amorous kiss before reaching the age of 14.
这个地球上，每两个人中就有一个人在14岁之前有了初吻。
The race is now on to detect whether the planet has an atmosphere and whether it contains water.
现在要加紧做的是探测这颗行星是否有大气层以及大气层中是否含有水分。
It is also concerned with the organisms of the planet and how the planet has changed over time.
地质学的研究内容还涉及地球上的生物以及地球的变化。
Every planet has now been visited, and every planet with a solid surface bar Mercury has been landed on.
每一个行星都被探测过，而且除了水性以外所有存在固体表面的行星都被登陆过。
When a planet transits its parent star, starlight passes through its atmosphere (if the planet has one).
一颗行星横越其母星时，星光会穿过其大气层(如果它有大气层的话)。
How can you imagine that every person on this planet has the same requirements for happy and balanced living?
能否想象，世间所有人都对健康和平衡的生活有相同要求？
Today, Lonely Planet has offices in Melbourne, London and Oakland, with around 450 employees and over 200 authors.
如今，孤星出版社在墨尔本，伦敦和奥克兰设立有办公室，拥有超过500名员工和300名撰稿人。
My own inordinate interest in what the lunatics are up to in every corner of our planet has to do with my childhood.
我对那群狂人在地球每个角落的所作所为极为关注，这与我的童年有关。
There can be no doubt that they would all begin to revolve around Jupiter, because that planet has the largest mass.
毫无疑问，太阳系所有的行星将围绕木星运转，因为在太阳系的行星中木星的质量最大。
Over the past 32 years, every conceivable aspect and area of the planet has been documented in increasingly vivid detail.
在过去的三十二年间，地球上所有能想象得到的画面和区域都被越来越细致入微的记录了下来。
It only works if the star in question has a planet, and that planet has a moon, and both bodies cross in front of the star.
它只能如果有问题的恒星有行星，该行星有一个月亮，两个机构中的恒星前方交叉。
However, just because anyone on this planet has the potential to achieve success, doesn't mean that anyone else actually will.
但是，仅仅由于我们这个星球上的任何人都有获得成功的潜质，并不意味着他们便真能成功。
Indeed, just landing safely on Mars has to be considered a success, since the red planet has a way of devouring space missions.
事实上，仅仅是安全地在火星表面着陆就已经算是成功了，因为这颗红色的行星经常吞噬掉太空探测器。
A NASA satellite circling the red planet has snapped the first pictures ever taken of a landslide happening on another world.
美国国家航空航天局(NASA)的火星环绕卫星最近拍摄到一起发生在火星上的山崩事件，这是人类首次看到来自另一世界的山崩事件。
Atomic energy has just been subjected to one of the harshest of possible tests, and the impact on people and the planet has been small.
在所有的能源技术里，核能源所经受的测试可能是最严厉的，而迄今为止，它对人类和地球的影响很小。
Atomic energy has just been subjected to one of the harshest of possible tests, and the impact on people and the planet has been small.
在所有的能源技术里，核能源所经受的测试可能是最严厉的，而迄今为止，它对人类和地球的影响很小。
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