Ultimately, the Earth's nations must work together to combat this extraterrestrial threat.

最终, 地球上各个国家必须共同努力应对威胁。

No, Scott didn't turn into an extraterrestrial.

不，斯科特并没有变成人。

And it would be tragic if we killed the first extraterrestrial life we found.

如果我们杀死了我们发现首个生命，那可就悲剧了。

Nothing is known about how extraterrestrials might take in information.

关于人如何获取信息，我们一无所知。

This doesn't mean that we discovered extraterrestrial life on venus far from it.

并不意味着我们在遥远金上发现了生命。

SETI stands for the Search for Extraterrestrial Intelligence.

SETI是“搜寻地文明”英文简写。

We use it for everything from Skype to the search for extraterrestrial life.

另一個系統Twister亦同，諸如此類。

In short, this ancient water could hold gas, microbes and hints about extraterrestrial life.

总之，种古老水源可能包含气体、微生物和与地生命有关东西。

Naturally, it raises more questions about the possibility of some kind of extraterrestrial life there.

当然，它提出了更多关于地生命存在可能性问题。

People could be shocked at such a sight and mistake a sprite for an extraterrestrial object.

人们可能会对象感到震惊，误以为“精灵”是物体。

Potential explanations have been offered for the truly mysterious disappearances, including paranormal activity and extraterrestrial encounters.

对于里发生真实神秘事件可能解释是里有灵异活动，以及他们遭遇了人。

So if an extraterrestrial civilization wised up and stopped polluting, we might still see the effects.

所以如果文明识破我们伎俩, 停止污染, 我们仍然会看到效果。

Some people think they could be a form of communication from extraterrestrial life trying to contact us.

一些人认为该信号可能是生物一种交流方式，他们在试图联系我们。

The exact proportion of locally sourced versus extraterrestrial water is still a topic of argument among scientists.

内生水和来水准确比例一直是科学家们争论话题。

Studying the earth-like planet could help in the hunt for extraterrestrial life

研究类似地球行有助于寻找生命。

THE space race between America and the Soviet Union was as much about ideological one-upmanship as extraterrestrial exploration.

美国和苏联空间竞争是关于探索上谁高人一等问题。

Their precise, unique frequencies were indicated so that intelligent, extraterrestrial lifeforms could use them to find the Earth.

它们精确度、独特频率都标示了出来有智慧生命形式就可以通过它们找到地球。

One hypothesis that has gained popularity among paleontologists is the role of extraterrestrial impacts in shaping the Mesozoic area.

有一种假说在古生物学家中越来越受欢迎，那就是撞击在塑造中生代地区中所起作用。

If that is the case, extraterrestrial life could exist in many more locations than we even imagine.

如果真是话，那有生命存在地方将远远超出我们想象。

Last year, McTier's advisor challenged her to find something else on exoplanets: evidence of extraterrestrial mountains.

去年，麦克蒂尔导师给了她一项挑战性任务：在太阳系行上寻找其他东西：山脉证据。