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

最终, 球上的各个国家必须共同努力应对这星威胁。

No, Scott didn't turn into an extraterrestrial.

不，斯特并没有变成星人。

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的首个星命，那可就悲剧了。

Nothing is known about how extraterrestrials might take in information.

关于星人如何获取信息，我们一无所知。

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

这并不意味着我们在遥远的金星上发现了星命。

SETI stands for the Search for Extraterrestrial Intelligence.

SETI是“搜寻文明”的英文简写。

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，这种古老水源可能包含气体、微物和与命有关的东西。

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

当然，它提出了更多关于命存在可能性的问题。

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

人们可能会对这样的景象感到震惊，误以为“精灵”是星物体。

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

对于这里发的真实神秘事件可能的解释是这里有灵异活动，以及他们遭遇了星人。

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

所以如果星文明识破我们的伎俩, 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星物的一种交流方式，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.

内水和来水的准确比例一直是家们争论的话题。

Some people thought this was an extraterrestrial type thing, a large barn owl or a sandhill crane.

有些人认为这是一种星物，也有人说它可能是一只大仓鸮或沙丘鹤。

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

研究类似球的行星有助于寻找星命。

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

有一种假说在古物家中越来越受欢迎，那就是星撞击在塑造中代区中所起的作用。

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

去年，麦克蒂尔的导师给了她一项挑战性任务：在太阳系行星上寻找其他东西：星山脉的证据。

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

美国和苏联的空间竞争是关于星探索上谁高人一等的问题。

That raises all sorts of questions: Would extraterrestrial beings at those distances have the means to reach Earth?

距离那么远的星物有办法到达球吗？