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Like this moon wrapped in thick clouds,Titan.
土衛(wèi)六，被厚云籠罩著
There's an atmosphere down here
它有大氣層
There's wind, rain ,even seasons
有風、雨，甚至有季節(jié)
Rivers, lakes and oceans
有河流、湖泊和海洋
It looks so familiar, so similar to Earth.
看起來和地球很像
But that's not water, it's liquid natural gas
但那不是水，是液態(tài)天然氣
Hundreds of times more natural gas than all the Earth's oil and gas reserves
這里天然氣比我們地球的油氣儲量多幾百倍
Maybe, one day, we'll use this energy to fuel a colony.
或許有一天，我們把它當做一個燃料基地
Assuming there isn't life here already
假設土衛(wèi)六上早已沒有生命
The Huygens space probe is here to find out
惠更斯號探測器在這里尋找答案
It's telling us there's organic material in the soil.
它報告說土衛(wèi)六的土壤中存在有機成分
But it's so cold, minus 300 degrees
但這兒太冷了，低到零下300度(華氏)
There's no way life could develop
生命無法發(fā)展
Unless Titan warms up.
除非土衛(wèi)六變暖
The Sun is supposed to get hotter
有人預言太陽會變得越來越熱
When it does maybe life will spring up here...
真是這樣，也許這里會出現(xiàn)生命
...just like it did on Earth
就像數(shù)十億年前的地球
And as the Earth gets too hot for us, maybe we'll move to Titan.
當?shù)厍驘岬轿覀儾荒芫幼〉臅r候，或許我們可以搬到土衛(wèi)六
One day, we might call this distant land home
到那時，也許我們就會把這個遙遠的地方稱為家
Home.
家
We're at least 700 million miles away now.
離我們至少7億英里
After this we lose visual contact with Earth.
過了這個點，我們就看不見地球了
We're standing on a cliff
我們正站在懸崖邊上
Looking out over a great chasm that stretches to the beginning of time.
眺望著通往時間起點的巨大深淵
Do we have the courage to jump?
我們有勇氣跳下去嗎？
We're in the solar system's outer reaches.
我們在太陽系的外圍
Unseen from Earth, unknown for most of history
在地球上看不得這里，古人不知道這里的存在
It's like diving into the depths of the ocean
就像潛入深海
