The visible universe is unimaginably huge but there

宇宙是難以想像的大

is one image that can give us a small glimpse at its

但這裡有一張影像能讓我們看到

awe-inspiring scale, and that is the

這令人驚豔的範圍中的一小角

Hubble Deep Field Image.

而這就是哈伯深空影像

[Fanfare jingle]

[Explosion sound and electric guitar riff]

In 1995, astronomers wanted to see what would happen

1995年，天文學家們想知道

if they pointed the new Hubble Space Telescope at an

如果他們放置一架新的哈伯太空望遠鏡

area of the sky that was nearly devoid of all stars.

到虛無的深空中，會拍到甚麼東西

They let it soak up light for over 140 hours over a

他們讓望遠鏡接收超過140小時的光線

span of 10 days and what they saw was nothing short of spectacular.

經過時10天的時間，他們得到的結果只能用壯觀來形容

This, is the Hubble Deep Field Image. [Orchestral music building]

而這個，就是所謂的哈伯深空影像

What you're seeing here is not just a few stars,

你現在看到的不僅僅是幾顆恆星

nebulas and star clusters but each and every dot

星雲，還是星團。而是你看到影像上的每一個點

and fuzzy patch you are seeing is an entire galaxy,

每一個模糊的碎屑，都是一整個銀河系

each containing around 100 billion stars!

每一個都包含了1000億顆恆星！

To get an idea of how many stars are in each one of

為了瞭解每一個銀河系裡有多少顆恆星

those galaxies, imagine an Olympic-sized swimming

想像一下一座符合奧運標準的游泳池

pool and fill it with standard 1.5cm marbles.

倒入直徑1.5公分的彈珠填滿它

If my calculations are correct (taking into account

假如我的計算沒錯

the max density of close-packed spheres),

(考慮到球體能堆積的最大密度)

it would fit about 1 billion marbles.

游泳池能填入10億顆彈珠

That would mean we'd need 100 Olympic swimming

這意味著我們需要100座奧運游泳池的彈珠量

pools full of marbles to equal the number of stars in an average galaxy!

才相等於一個銀河系裡平均恆星的數量！

In a similar, more recent capture called the Hubble

同樣地，最近抓到所謂的

ULTRA Deep Field image, we can see around 10,000

哈伯超深空影像，我們可以看到大約一萬個銀河系

galaxies, each with around 100 billion stars.

每一個銀河系包含了1000億顆恆星

Pretty cool right? But you haven't heard the most amazing thing yet!

非常酷對吧？但還有更令人驚豔的事在後頭呢！

This image is not the entire night sky - far from it!

這影像還不是整個夜空 - 還差得很遠！

This is only a tiny fraction of the sky -

這只是一小部分天空 -

one 13 millionth to be exact!

事實上只是1300萬分之一而已！

Look at the size of the D on the front of an

看看這個一分美元硬幣正面上D的大小

American penny then hold the penny up to the sky at arm's length.

拿著這硬幣伸長手臂指向天空

The area of sky that the Ultra Deep Field image takes up

超深空影像拍到的宇宙的範圍

is roughly contained entirely in that tiny "D".

大概就是涵蓋於這小小的「D」裡面

The Hubble Deep Field Images allow us to peer deeper

哈伯超深空影像讓我們看見更深遠的宇宙

into space AND time than we have ever seen before.

以及我們以往未曾見過的時間

I say deeper into time because some of these objects

我會說時間是因為有些星體離我們太遠了

are so far away, the light coming from them has taken

光線從那地方傳過來

up to 13 billion years to get to us so we're seeing

需要130億年

them as they looked less than a billion years after

所以我們只能看到大爆炸後距離我們10億光年的距離

the Big Bang, long before the Earth was even formed.

甚至那時地球都還沒形成

Some of these distant objects are called quasars

有些距離我們很遠的天體是所謂的類星體

which are the most powerful and luminous objects in the universe.

這是宇宙中最強大也是最亮的星體

Even though they're only about the size of our solar

雖然他們的大小只如同我們太陽系一般

system, they emit up to 1000 times more energy than

他們可以發射超過我們的整個銀河系

the ENTIRE Milky Way galaxy, which contains between 200 and 400 billion stars.

2000億到4000億顆恆星1000倍的能量

They're made up of supermassive black holes that are

他們是由超大黑洞所組成的

consuming so much material, that they shoot giant

因為吸收超多物質，所以它們幾乎可以以光速

jets of particles traveling at nearly the speed of light,

發射出巨大的粒子束

thousands of light years into space!

並且距離達到數光年這麼遠！

Yeah, quasars are pretty awesome.

是的，類星體非常令人驚艷

Looking at this image is a humbling experience,

觀看這影像著實是個震撼人心的經驗

but to me, it just shows how amazing our universe is

但對我來說，它只是說明了我們的宇宙是多麼令人驚訝的

and how much there is left for us to explore.

而且還有許多地方等著我們去探索

It's almost unfathomable that we could be the only life

一切都還很難說是否我們只是這浩瀚宇宙中

in this vast universe.

唯一的生命體

Peer into this image long enough and you'll start

觀察這影像更久一點，你會開始想像

to imagine what awe-inspiring wonders could be

在這遙遠且涵蓋數十億顆星球的銀河中

hiding in those distant galaxies full of billions

還有甚麼令人讚嘆的奇觀

of planets. Scientists are learning more about our

科學家每天都在研究

universe and our local galaxy every day.

我們的宇宙跟我們的銀河系

Just imagine what they might find next!

光是想像他們下次會發現甚麼就讓人振奮！

You can download a high resolution copy of the

你可以在這或是按此連結下載

Hubble Ultra Deep Field image here or on the link

高清版的哈伯超深空影像

If this is your first time on our channel, I hope

如果你是第一次看我們的頻道

you'll subscribe to catch more of our upcoming

我希望你可以訂閱，這樣你就可以觀看

science videos and also check out some of our

我們最新的科學新知影片

educational videos for preschool kids.

你也可以觀看我們為學齡前兒童製作有教育意義的影片

Thanks so much for watching, and see you next time!

非常感謝您的觀賞。下次見！

[If you found these captions useful, I'd love to hear from you in the comments below]

[如果你認為這字幕對你很有幫助，您可以在下面留言鼓勵]