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Fast forward 100 million years
快速掠到一億年后
and it had grown into a giant ball,
它成長為一個巨大的球體
sweeping up billions of tons of celestial debris.
橫掃數十億噸太空碎片
This is where the Earth came from,
這就是地球的起源
and, therefore, how you and I began.
也是你我的起源
But our planet would have remained
不過地球將永遠是個
a large sterile ball of rock and metals, minerals forever,
布滿巖石，金屬，礦物質的貧瘠星球
were it not for one more event,
如若沒有一項其他因素
one more expression of the forces of nature.
一項自然發揮的神奇力量
93 million miles away at the heart of the giant nebula,
九千三百萬英里以外的巨大云團中心
the pressure and temperature of a ball of hydrogen gas had become so great
氫氣團的壓力和溫度巨大
that the atoms were beginning to fuse.
原子開始聚合
A new star, our sun, was coming to life.
一顆新的恒星，太陽，誕生了
As the sun ignited, it gave off a huge blast of solar wind,
太陽發光，釋放出強大的太陽風
a radioactive gust of energy.
這是一種有輻射的能量風
This blew all the remaining dust and gas that was left over from the nebula
太陽風將星云殘余塵埃和氣體
out to the edge of the solar system
吹到太陽系邊緣
which is why everything is nice and orderly today.
這也是如今一切都井然有序的原因
In the outer reaches of the solar system,
在太陽系里的外部區域
we have the huge gas planets, Jupiter, Saturn, Uranus and Neptune.
有巨大氣體行星:木星，土星，天王星，海王星
Further in are the denser, rockier planets,
更近一些是密度更大，巖石更多的行星:
Mercury, Venus, Mars, and of course the Earth.
水星，金星，火星，當然還有地球
Lucky for us the sun is 865,000 miles in diameter
幸運的是，太陽直徑八十萬五千英里
or just the right size to burn consistently for a very long time.
尺寸正巧足以長時間持續燃燒
Eight billion years.
八十億年
Long enough to allow the next development to take place.
時間足夠讓接下來的演化發生
Life.
生命
Life is one of the strangest phenomena known.
生命是現知的最奇特的現象
In my opinion, it shows that the universe is capable of almost anything.
在我看來，它表明宇宙無所不能發生
Yet it amazes me that we can know so much about
我始終驚嘆，人類竟能了解如此多
how the universe began many billions of years ago,
數十億年前宇宙如何起源的
but we have yet to discover how life itself began.
不過我們還沒發現生命的起源
