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

最终, 地球上的各个国家必须共同努力应对外星威胁。

If you're an extraterrestrial looking down on this behavior, you'd wonder whether the species has all its marbles in place or not.

如果你来自外星，如果你看起行为，你会想：生物（人类）是是失去理智了。

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外星生命，那可就悲剧了。

Nothing is known about how extraterrestrials might take in information.

关于外星人如何获取信息，我们一无所知。

SETI stands for the Search for Extraterrestrial Intelligence.

SETI是“搜寻地外文明”的英文简写。

No, Scott didn't turn into an extraterrestrial.

，科特并没有变成外星人。

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

另一系統Twister亦同，諸如此類。

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

总，古老水源可能包含气体、微生物和与地外生命有关的东西。

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

当然，它提出了更多关于地外生命存在可能性的问题。

This one also started out with vintage images of supposed extraterrestrial contact, then cut to clips from the movie interspersed with some ominous-sounding taglines as we hear a musical track that slowly builds in intensity until the title drops.

支预告片也是以所谓的外星人接触的复古画面开头，然后切入电影片段，中间穿插一些听起来祥的标语，我们听到的音乐也在慢慢加强，直到片名出现。

These scientists propose that Homo sapiens and analogous extraterrestrial life forms may be the probable end result of biological and planetary evolution when a planet has a certain set of attributes that make it habitable, rather than requiring countless lucky breaks.

些科学家提出，当一个星球具备某些宜居属性时，智人和类似的外星生命形式可能是生物和行星进化的最终结果，而需要无数次的幸运突破。

It's the same temperature as the surface of the Sun, but it's not 94 million miles away like the extraterrestrial sun is.

和太阳表面的温度相同，但像太阳距离地球有九千四百万英里。

This year's Science on the Hill event, which is open to the general public, will feature experts in space law and cosmic trash removal, along with Scientific American editors, discussing how humans can combat the issue of extraterrestrial rubbish.

今年的“科学在国会山”活动向公众开放，将邀请太空法和宇宙垃圾清除方面的专家，和《科学美国人》的编辑一起，讨论人类如何应对外星垃圾问题。

Dating back to May 15, 2021, a lander, carrying the Zhurong rover, touched down in the southern part of Utopia Planitia, a vast plain in the northern hemisphere of Mars, imprinting the country's first landing on an extraterrestrial planet.

可以追溯到 2021 年 5 月 15 日，一个载有祝融号巡视器的着陆器在乌托邦平原的南部着陆（乌托邦平原是火星北半球的一个广阔平原），标志着我国首次登陆地球外的行星。

So a survey or carefully crafted time capsule is probably biased towards the best parts of our lives — the parts we want people to remember and extraterrestrials to know about.

所以无论是一份调查，还是精心打造的时光机，都会偏向于我们生活最好的那些方面——那些我们寄希望去牢记，并让外星人也可以了解的时光。

Hippke and Learned are not the first to think of this. In 2006, physicist Richard Carrigan of the Fermi National Accelerator Laboratory, in the US, raised the question of whether extraterrestrial intelligence signals needed to be decontaminated.

希普克和罗恩德并是第一个想到一点的人。 2006年，美国费米国家加速器实验室的物理学家理查德·卡里根也提出了是否需要对外星人的信号进行净化的问题。

This makes me think of something: Do you think there could be alien planets, extraterrestrial civilizations, who just live on planets that are too big for them to get off of?

让我想到一些事情：你认为会有外星球，外星文明，他们只是生活在对他们来说太大而无法离开的行星上吗？

And then, betting on the fact that they're closer than we think, Doritos made history in 2008 by broadcasting the first-ever video advertisement intended for potential extraterrestrial life.

然后，打赌他们实际上比我们认为的更近，多力多滋在 2008 年播送了第一个以潜在的外星生命为对象的广告成为历史性创举。

The hearing didn't shine any new light on the existence of extraterrestrial life but it was notably the first hearing on UFOs or UAPs in more than 50 years.

听证会没有为外星生命的存在带来任何新的曙光，但值得注意的是，是50多年来关于UFO或UAP的第一次听证会。

The search for extraterrestrial intelligence, known as SETI, is an effort to find artificial-looking electromagnetic-radiation signals that might have come from a technologically advanced civilization in a far-away solar system.

搜寻地外文明计划（SETI）是一项寻找人造电磁辐射信号的项目，些信号可能来自遥远太阳系中技术先进的文明。