Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth.
在其它事情中，这些发现表明，剧烈的气候变化对地球来说并不是什么新鲜事。
Volunteer vacations have a “green” offshoot: trips that aren't just about doing good but doing good for planet Earth.
义工的假期可以选择“绿色”的选项：外出不仅是做好事而是为地球母亲做些什么。
For planet Earth there are about two seasons each year during which the orientation of the Moon's orbit is favorable for solar and lunar eclipses.
对地球而言，每年基本上有两个日月的季节，该时，月球轨道的指向有利于日食或月食的发生。
Having set the optimum population number for planet earth, the World Planners have also set a date by which to achieve their optimum population number.
为地球设定了最佳人口数目，该世界计划者们还设定了一个在该时间之前实现其最佳人口数目的日期。
The new research has profound implications for the environmental summit in Rio. Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth.
新的研究发现给里约热内卢召开的环境峰会带来了重大的启示，这些新发现表明，气候的急剧变化对地球而言并不是新问题。
For the Earth to maintain a constant average temperature, such emissions from the planet must balance incoming solar radiation.
为了使地球保持恒定的平均温度，来自地球的这种辐射必须平衡入射的太阳辐射。
Venus has long been held up as a cautionary tale for everything that could go wrong on a planet like earth.
长期以来，金星一直被认为是一个警示故事，告诉我们在像地球这样的行星上，任何事情都可能出错。
Earth is a rocky planet where there is liquid water, which is necessary for life to exist.
地球是一个岩石行星，这里有液态水，这是生命存在的必要条件。
For example: keeping the superorganism project on track - that is, not letting planet Earth dissolve into chaos - will mean getting closer to moral truth, I think.
比如，不放弃超个体事业，也就是说，不让行星地球陷入混乱—我认为这将意味着更接近真相。
Many of us think of scientists experimenting in a lab during the hypothesis-testing phase, but for scientists studying how the Earth works, their lab is the planet.
我们大部分人都认为科学家呆在实验室里做做实验就完成了假设检验，但是对于研究地球运行的科学家来说，地球才是他们的实验室。
The Titan explorer, for example, will be studying a place that - in a crude way, at least - resembles the early planet Earth at a time when life arose here.
比如说土卫六探索号将会用到至少是原始的方法来研究同早期行星——地球出现生命时情况相似的地方。
They say they have strong evidence for another planet in the same system that has about eight times the mass of the Earth and orbits every 84 days.
他们说他们有足够证据证明在同样系统内还有一个行星，体积为地球的8倍，运转周期为84天。
So is Earth just an outlier, a freak cosmic arrangement of planet and moon that makes for a nice, life-enabling climate?
地球是一个例外，宇宙对行星和卫星的一次巧妙的安排成就了一个绝佳形成生命的气候。
Perhaps the strange human desire to fly away from the planet, to "slip the surly bonds of earth," is a necessary impulse for discovering who we are.
人类有一个奇怪的想法，那就是从地球上远走高飞以挣脱这个乖戾的星球。或许这个冲动对于发现我们究竟是谁是必要的。
It has long been thought that the seeds for life came to a primordial Earth from solar system leftovers crashing into the planet.
人们一度设想，正是来自太阳系中的宇宙残骸，为原始地球带来了生命之种。
For instance, eruptions during the snowball-Earth period are thought to have added sulfur particles to the atmosphere, blocking sunlight and cooling the planet.
比如，在“雪球地球”时期火山爆发使得空气中增加了硫粒子，它阻挡了太阳光线，使地球冷却。
Agol suggests we survey the 20, 000 white dwarves closest to Earth. Finding a planet would give us a good place to look for life.
艾戈建议观察离地球最近的20000颗白矮星，只要能在它们周围找到行星，就可能在行星上找到生命迹象，也就可能让它成为下一个“地球”。
The roughly Earth-size planet, called Gliese 581g, nestles in an orbit comfortable enough for liquid water, and thus perhaps life, to exist.
这颗和地球大小相当的星球被起名叫做Gliese 581g，它在太空中的位置足够适合液态水的存在，因此，很可能这个星球上存在生命体。
The little things that you do to save fuel all adds up not only for your wallet, but for future generations and the planet Earth as well.
你为省油所做的这些小事不仅对你的钱包有意义，而且对子孙后代和整个地球都有意义。
This said, the fact that a planet so unlike the Earth could be habitable bodes pretty well for the search for life in general.
也就是说，这样一个与地球非常类似的星球居然适合居住，这也预示着寻找生命存在的大好前景。
As the Rebellion continues to grow from strength to strength, we have Jedi like you to thank for protecting our tiny planet Earth.
随着反抗军继续变得越来越强大，我们要感谢您这样的绝地武士来保卫我们小小的地球。
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.
我们的任何核对地球有限资源的利用正呈指数级上涨，同时增长的还有我们借以善意或恶意的改造环境的技术能力。
They thought life was about being genuine, about achieving a legacy larger than one's self, about leaving this earth a better place for family, community, and planet.
他们认为人生就是要真诚，就是取得比自身大的财富，就是要在走的时候为家人，国家，世界留下一个更好的空间。
No wonder we're looking so hard for a planet more like Earth.
所以我们才那么努力的寻找类似地球的行星。
The best approach is to look for transits, in which an orbiting planet passes in front of its star, dimming the amount of light we detect on Earth.
最好的捷径是寻找宇宙中一天体运行到另一天体与观察者之间，使前者如同经过后者的表面，使我们从地球上观察到的光线变暗。
One of two things will happen. Some incredibly imaginative, intelligent person will come along or planet Earth will take care of it for us.
那时有两件事可能发生：某个超乎想象智慧绝伦的人出现，或者地球自会料理。
If a planet-destroying asteroid is headed for Earth, scientists now have a much better chance of spotting it.
如果一个可以毁灭我们地球的小行星正在飞向我们，科学家们现在有了更好的机会去将它定位了。
The White Dragon Society and its Allies are appealing for calm and a negotiated solution before the planet earth is destroyed.
白龙会及其同盟恳请双方冷静，并在地球被毁灭前协商出一个解决方案。
Even taking into account the all the energy that's lost in space, enough still reaches Earth in an hour to power the entire planet, theoretically, for a year.
即便除去辐射到茫茫太空中的大部分，每小时到达地球的能量理论上仍可供人类使用一年。
A planet more like Earth than any yet discovered has been identified as a potential future home for mankind.
天文学家最新发现了一颗被认为是迄今为止和地球最为相像的行星，而且被视为可能成为人类未来的居住地。
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