We knew nothing about the structure in Saturn's rings.

我们对结构一无所知。

Their mass was the missing piece of the puzzle to determine their age.

“质量是确定其年龄缺失线索。”

They may look for water on Mars or take close-up pictures of Saturn's rings.

这些卫或是在火上寻找水，或是拍摄特写照片。

And just like the rings of Saturn, Earth's rings wouldn't last forever.

并且就像一样地球行不会永存。

The data suggests that Saturn's rings are young by celestial body standards, that is possibly a few hundred million years old.

这些数据表明，按照天标准，还很年轻，可能只有几亿年历史。

One theory is that a huge asteroid struck earth with such force that rock and debris were shot into orbit around the planet like the rings of Saturn.

有一种理论认为，一颗巨大小行撞击地球力量很大，导致岩石和碎片像进入一样绕地球轨道。

A ring of debris formed around the Earth, sort of like Saturn's rings, unlike Saturn's rings that all collected into our moon.

围绕地球形成碎片，有点像，不像都聚集在我们卫上。

The bump is the result of the particles that make up the ring becoming distorted by the presence of something large.

新大出现使得变得扭曲，这个凸起就是构成颗粒组成。

As it plowed through the material around the proto-Saturn, the moon's icy layer got stripped off, forming the rings.

当它穿过原始周围质时，卫冰层被剥离，形成了。

And then we go beyond the moon, beyond Mars, and we sail through the rings of Saturn.

然后我们将超越月球、火，穿越。

In addition, at this point in the future the rings around the planet Saturn will no longer exist.

此外，在未来这个时候，周围将不复存在。

I have just imagined flying along in a shuttlecraft across the ring right close to the rings.

我只是想象着乘坐航天飞机飞过，就在离很近地方。

The substances are the same material that creates one of Saturn's rings, called the " E" ring.

这些质与形成之一“E”质相同。

What are Saturn's rings believed to be made of?

被认为是由什么构成？

And remember, Saturn is oblate, so as the rings formed they would've felt a gravitational tug from Saturn's equatorial bulge, centering them right over the planet's midline.

记住，是扁球形，所以当形成时候，它会受到来自赤道隆起引力，使之处于中线上。

But it's as Cassini captures images with the sun directly above the equator, that the most surprising feature of the rings emerges.

但是，当卡西尼号拍摄到太阳直射赤道上方图像时，最令人惊讶特征出现了。

And when they crunched the numbers, the data suggested an age of no more than 100 million years.

当他们运算这些数字时，数据显示年龄不超过1亿年。

The pieces of ice and rock that form rings around Saturn are not considered moons themselves, NASA said.

NASA说，围绕形成冰块和岩石本身并不被认为是卫。

We knew this was going to be a time for us to investigate the third dimension, something that you don't get to see when you just look at picture of Saturn's rings.

我们知道这将是我们研究三维空间一次机会，这是你在观看图片时无法看到东西。

So yeah, Saturn's rings are flat.

所以确实非常扁平。