The most complex engineering project ever attempted has created an enormous set of interlinked modules that orbits the planet at more than 27,000 kilometres per hour.
有史以来最为复杂的工程项目创造了一组巨大的相互连接的模块，其以每小时27000公里的速度绕地球运行。
To begin with, they will have to find out whether life has ever existed on the planet of Mars in the past.
首先，他们必须搞清楚火星上是否曾经存在过生命。
It's not the worst planet I've ever been to.
那还不是我去过的最糟糕的星球。
Our warming planet is expected to face successive crop and water crises in the coming decades-which means each nation's natural resources will be more crucial than ever.
全球变暖使地球在未来数十年将面临连续的农作物和水危机，这意味著每一个国家的自然资源会比以往更加重要。
Ever look up at the night sky and try to tell your kids the name of that constellation you're pointing at, or try to remember which planet that is in the southern sky?
曾经几何你可能仰望星空，试图告诉你的宝贝你指出的星座叫名字，或者你想记住哪个星球位于天南极？
Some types, such as Marine stratocumulus clouds, can have a significant cooling effect thanks to their ability to reflect sunlight back out to space before it ever reaches the surface of the planet.
某些类型的云，例如海洋层积云，由于它们拥有在阳光最终照射到星球表面之前便将阳光反射回太空的能力，因此它们能够产生十分显著的冷却效果。
Sometimes when two certain planets travel together, like Venus and Mars, they create a chemical bond that is stronger than each planet could ever be separately.
有时当两个特定的行星，例如金星和火星，行进至同处，他们之间产生的化学反应将强于单个行星所能产生的能量。
It is the largest, loudest, longest-lived creature ever to exist on our planet. Yet it is elusive, and for all its magnificent bulk, barely seen.
它们是这个星球上最大，叫声最响，寿命最长的生物，但它又是那么难以捉摸，尽管身形巨大却很少有人睹其真容。
We must seize this moment. We must be the first generation to think both as nationals of our countries and as global citizens in an ever shrinking and more connected planet.
我们必须抓住这个时机，我们必须成为同时作为我们本国的国民和一个日益缩小、联系日益密切的星球上的世界公民的角度思考问题的第一代人。
Yes, we're talking about the utter collapse of the entire basis by which every society has ever existed on the planet.
没错，这儿说的正是每个存在在这星球上的社会中，最基本的东西的崩塌。
Too hot to handle: a Nasa artist's impression of Kepler-10b, the smallest planet ever found outside our solar system.
太热了而不能处理：美国宇航局的一个专家对开普勒10的印象是太阳系外我们发现的最小的行星。
On July 21, 1983, ten days after my birth, Antarctica reached the coldest temperature ever recorded on the planet: -129 degrees Fahrenheit.
就在我出生后的十天，1983年7月21日，南极洲达到了在这个星球从未记录过的最冷的气温：华氏零下129度。
Any of my friends and anyone knows that and there is not a chance on this planet I would ever, ever, ever do anything like that to a kid.
我所有的朋友以及每一个人都知道这一点。我不会，绝不会，绝对绝对不会对一个孩子做这种事情，一丝可能性都没有。
Nonetheless, the crew members will know that, if a mission to the Red Planet ever does take place, they will have played a significant part in it.
尽管如此，机组人员会明白，如果前往红色星球的任务真的会发生的话，他们将在其中扮演一个举足轻重的角色。
The Iceman might be the most exposed and invaded person who ever walked the planet.
冰人可能是在这个星球上行走过的暴露得最多的遇袭的人。
Kepler will watch them all for three-and-a-half years and wait for the light from any of them to dim ever so slightly. That could be the sign of a planet passing in front of its sun.
开普勒号将在轨道上运行三年半，等待着观测这十万行星光线的每一丝微乎其微的变化——那也许就是有行星从恒星前经过的信号。
We are all living in a sound bite world which has made us the most impatient people ever to occupy this planet.
我们都居住在一个即时通天下的世界，这让我们成了地球上有史以来最没耐心的一代。
Now more than ever, as stress and anxiety levels rise on our planet, moments of quality rest throughout our day are essential for the prevention of exhaustion, fatigue and confusion.
现在情况尤为重要，特别是当地球上的压力和焦虑水平不断上升的时候，高质量的休息对于消除疲劳和混乱是非常重要的。
Currently, the food industry is one of the largest polluters on the planet, with the Earth's ever-growing population demanding more food than we can provided.
目前，食品工业是这个星球上最大的污染源之一，地球上不断增长的人口越来越多的粮食需求超出我们所能提供的。
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.
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。
The company hopes that "Life" - which is narrated in the United States version by Oprah Winfrey - has the same impact as "Planet Earth," called the most expensive nature documentary ever produced.
探索通信公司希望由奥普拉讲解的《生命》系列能和《行星地球》一样，在美国产生巨大的反响，《生命》号称是史上最贵的自然纪录片。
This is the first image ever taken of Earth from the surface of a planet beyond the Moon.
这是除月球之外，第一个从其它星球的陆地上拍摄地球的照片。
Last year a European observatory discovered the most Earth-like planet ever found - a world three times the size of our own.
去年欧洲天文台发现了迄今为止最像地球的行星—是我们地球的三倍。
He is the smartest scientist I've ever seen on this planet.
他是我所见过地球上最聪明的科学家。
The spacecraft will use its 2.5-meter robotic arm to scoop up soil samples and collect underground ice, or permafrost, to see whether there's evidence life ever existed on the Red Planet.
探测器将借助2.5米长的机械手臂挖掘土壤样本，采集地下冰，或者永久冻土，来研究这个红色星球上是否有生命迹象存在。
Steve Jobs shared his wealth with the entire planet before he ever paid one dime in taxes.
乔布斯在还没上税前就已经向全世界分享了他的财富。
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。
"Being less reflective than coal or even the blackest acrylic paint-this makes it by far the darkest planet ever discovered," lead study author David Kipping said.
首席研究员戴维-基平说：“比煤炭或者是最黑的丙烯酸颜料反射性还小——这让它成为迄今为止发现的最暗的行星。”
This is planet Earth, but not as you have ever seen it before.
这就是行星地球，但是你不曾见过的样子。
This is planet Earth, but not as you have ever seen it before.
这就是行星地球，但是你不曾见过的样子。
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