Did you just reverse the intro?

你是不是把前奏反過來了？

That was cool!

太酷了！

The Universe is pretty awesome.

宇宙是很厲害的。

With our limited understanding of the Universe, it is possible that it could keep going on forever, but it's also possible that it could end in a final cataclysmic event.　

以我們對宇宙的有限理解，它有可能一直持續下去，但也有可能在最後的大災難事件中結束。

One such universe-ending theory is called The Big Crunch.

其中一個這樣的宇宙終結理論被稱為 "大緊縮"。

You've heard of The Big Bang, right?

你聽說過 "大爆炸 "吧？

Basically, The Big Crunch is like that, but in reverse.

基本上，"大緊縮 "就是這樣的，不過是反過來的。

It's a hypothetical scenario where the Universe would eventually stop expanding like it currently is, and instead contract or collapse into itself, taking everything within the Universe with it… essentially consuming itself.

這是一個假設的場景，宇宙最終會停止像目前這樣的擴張，而是收縮或坍塌到自己身上，把宇宙中的一切都帶走......本質上是消耗自己。

Not only does that sound pretty heavy metal, but it would be, well, pretty much the end of life as we know it.

這不僅聽起來很重金屬，但這將是，嗯，幾乎是我們所知道的生活的結束。

However, within this theory, rather than The Big Crunch simply being a dark, bitter end to everything, it could also be a new beginning of sorts.

然而，在這一理論內，與其說《大緊縮》只是一切的黑暗、苦澀的結局，還不如說它可能是一種新的開始。

There's this idea that it could lead to another Big Bang, starting the process all over again.

有這樣的想法，它可能會導致另一個大爆炸， 開始的過程中，所有重新開始。

You could have a virtually never-ending cycle of Big Bangs and Big Crunches, leading to a type of cyclical universe model where, instead of switching everything off, somebody just keeps pushing the reset button.

你可以有一個幾乎永無止境的大爆炸和大緊縮的循環，導致一種週期性的宇宙模型，在那裡，有人不是關閉一切，而是不斷地按下復位鍵。

That's somewhat uplifting I guess, though it does beg the whole “what's the point?” question.

我想，這有點讓人振奮，雖然這確實引出了 "意義何在？"的問題。

Let's save the existential dread for later! Okay, this is Youtube! Just keep watching! Everything's fine!

讓我們把生存的恐懼留到以後再說吧！好了，這裡是Youtube！繼續看吧！一切都會好起來的！

All of this is purely hypothetical, of course, because there are still things that we don't really know or completely understand about the Universe.

當然，這一切都純屬假設，因為對於宇宙，我們還有很多東西沒有真正瞭解或完全瞭解。

One of these question marks is called dark energy, which is believed to be about 70% of the composition of the Universe.

其中有一個問號叫暗能量，據信暗能量佔宇宙構成的70%左右。

Little is really known about dark energy other than that it's some sort of seemingly-invisible space force that's been thought to cause the acceleration of the Universe's expansion.

關於暗能量，人們知之甚少，只知道它是某種看似不可見的空間力量，被認為會導致宇宙膨脹的加速。

Dark energy has been mostly thought of as a cosmological constant, which doesn't look good for The Big Crunch theory's validity.

暗能量大多被認為是一種宇宙學常數，這對大緊縮理論的有效性並不看好。

If dark energy is indeed a constant, then the Universe probably wouldn't collapse into itself, but rather keep on expanding.

如果暗能量真的是一個常數，那麼宇宙可能不會自我坍縮，而是不斷膨脹。

In fact, recent research that came out earlier this year may take us even further away from The Big Crunch theory.

事實上，今年年初的最新研究，可能讓我們離大緊縮理論更遠了。

Using a combination of X-ray and ultraviolet data, astronomers have found evidence that dark energy may be getting stronger with time.

利用X射線和紫外線數據的組合，天文學家發現了暗能量可能會隨著時間的推移而變強的證據。

By looking at and comparing the distances of quasars — distant, super-bright black holes—, the researchers found that the universe's expansion rate was faster than expected based on models where dark energy was kept as a constant.

通過觀察和比較類星體--遙遠的超亮黑洞--的距離，研究人員發現，基於暗能量被保持為常數的模型，宇宙的膨脹速度比預期的要快。

So, if dark energy really is getting stronger, it's way more likely that we would be looking at something called a Big Rip. F's in the chat please!

所以，如果暗能量真的越來越強，我們更有可能看到的是一種叫做大撕裂的東西。哈拉時請用F的!

The Big Rip theory says that the Universe could keep on expanding to the point where it rips itself apart.

大撕裂理論說，宇宙可以不斷膨脹，以至於把自己撕裂。

We're talking everything from planets, to people, to even atoms themselves getting torn apart by The Big Rip.

我們說的是一切，從行星，到人，甚至原子本身都會被 "大裂縫 "撕碎。

This could be the case if dark energy gets stronger and wins the tug-of-war against gravity, which, based off of that recent research, seems to be like a possibility.

如果暗能量變得更強，並在與引力的拉鋸戰中獲勝，就有可能出現這種情況，根據最近的那項研究，這似乎像是一種可能性。

Yay! The video is over but the existential dread is back on! Woo!

Yay!視頻結束了，但是存在感的恐懼又開始了!嗚！

We're probably gonna be fine though for a very long time. Don't- Don't worry about it!

我們可能會被罰款，雖然很長一段時間。別... 別擔心！

So are there any other questions about space that you want answered?

那麼，關於空間的其他問題，你還有什麼想要解答的嗎？

Let me know in the comment section below, or tell me, what should I answer next?

在下面的評論區告訴我，或者告訴我，接下來我應該怎麼回答？

Curious to know what would happen if Earth only had one season? Check out this video!

很想知道如果地球只有一個季節會發生什麼？看看這個視頻吧!

There actually has sort of been an example of this over 200 years ago due to a volcanic eruption.

其實在200多年前，由於火山噴發，也算是有過這樣的例子。

When a volcano erupts, it releases dust, ash, and sulfur into the atmosphere that could block solar rays and actually cool the planet.

當火山噴發時，它會釋放出塵埃、火山灰和硫磺到大氣中，可以阻擋太陽光，並實際冷卻地球。

As always, my name is Blocko, this has been Life Noggin, don't forget to keep on thinking!

一如既往，我的名字叫Blocko，這一直是生活中的Noggin，別忘了繼續思考!