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We arrive back at the moments the universe began, and face the biggest questions in all of science.
穿越回宇宙混沌初開的那一刻，直面科學(xué)界最重大的一門學(xué)說。
This is the Holy Grail of Physics.
它被喻為物理學(xué)界的神秘圣杯。
We want to know why it banged. We want to know what banged. We want to know what was there before the bang.
宇宙為什么要爆炸，什么物質(zhì)在爆炸，大爆炸之前這里是什么樣子，對此我們要一探究竟。
To get the answers, we've built machines the size of cities to simulate conditions when the universe was created, and space telescopes to peer deep into our past.
為了找尋答案，我們建造了粒子加速器（其規(guī)模巨大，跨越幾個城市）去模擬宇宙形成的條件；我們建造了天文望遠(yuǎn)鏡，去深入窺視我們的過去。
We're getting close to answering the age old questions: why are we here, where did we come from, does the universe, in fact, has a beginning or an end, and if so, what are they like.
我們?yōu)樯趺磿谶@里；我們來自哪里；宇宙是否也有開端，是否會湮滅：這些問題的答案離我們越來越近了。
If we find the answer to that, it would be the ultimate triumph of human reason. We would know the mind of God.
如果找到答案，這將是人類理性取得的最輝煌的勝利。我們便會了解上帝的旨意。
The origin of the Big Bang is the greatest mystery of all time. And the more we learn, the deeper the mystery becomes.
宇宙大爆炸的起源一直是最大的謎團(tuán)。我們發(fā)現(xiàn)的越多，就會在這謎團(tuán)里陷得越深。
We like to think that our universe is unique. However, now we are not so sure. Perhaps, there is a multi-verse of universes.
人們總是認(rèn)為這個世界是唯一的。然而我們不確定。也許這個世界之外還有很多世界。
Another possibility is that our Big Bang is just one of many Big Bangs.
也許宇宙大爆炸不止一個；
But it may be one of just an infinite number of universes and there may be other regions and that infinite number of universes where Big Bang is just happening today.
也許宇宙是無數(shù)的，而大爆炸只有一個；也許在無限的宇宙里，某個地方今天才開始大爆炸。
But there is only one universe we are sure of, and understanding this one is hard enough.
但我們唯一確定的只有這一個宇宙，光是探究這個宇宙，就已經(jīng)困難重重了。
Since the late 1920s, everything we know about how our universe works has been turned upside down.
自20世紀(jì)20年代起，人們傳統(tǒng)的世界觀念完全被顛覆了。
It's important to realize how much our picture of the universe is changing in the last century.
意識到上個世紀(jì)人們對宇宙的構(gòu)想的改變是非常重要的。
At the beginning of the 20th century, the conventional wisdom in science was that the universe was static and eternal.
20世紀(jì)初，主流的科學(xué)認(rèn)知為宇宙是靜止不變的，是永恒的。
In 1929, that all changed.
在1929年，人們的觀念就變了。
