A meteor that scientists say was probably a few meters across.

科学家说这颗流的直径可能只有几米。

These are meteor showers that occur in different parts of the year.

这些都发生在一中不同时间的流雨的名字。

Now that we've got the science of asteroids and meteors down pat, let's get right to the terrible topic.

既然我们已经掌握了小行和流的科学知识，让我们直接进入这个可怕的话题吧。

Here's why this is happening. There's a comet named Thatcher.

下面来解释一下发生天座流雨的原因。有一颗名为“佘契尔”的彗。

What would happen if a giant meteor came crashing down to Earth?

如果一颗巨大的流坠落地球会发生什么呢？

What would happen if a giant meteor hit Earth?

如果一颗巨大的流撞击地球会发生什么呢？

Researchers say more than 90 percent of them burn up completely.

研究人员表示，超过90%的流会完全燃烧。

So where do meteoroids like this come from?

那么像这样的流从哪里来的呢？

The Harlem Shake memes and a meteor that hit Russia.

哈林摇舞步正在兴起，还有撞击俄罗斯的流。

We get questions here all the time about comets asteroids and meteors, meteorites.

我们总收到很多有关彗、小行、流，陨石的问题。

It's the first meteor shower of Spring.

天座流雨春季的第一场流雨。

That would take something highly dramatic like, oh, I don't know, a massive meteor.

要真正地毁灭还得需要一些突发情况，比如说巨大的流。

I was amazed when I saw the phenomenon of shooting stars.

当我看到流的现象时 我感到很惊讶。

If one of these rocks hit's the earth's atmosphere, it becomes a meteor. That's also known as a shooting star.

如果其中一块岩石撞上了地球大气层，它就会变成流。Shooting star流的另一种说法。

The annual Perseid meteor shower is about to reach its peak.

一一度的英仙座流雨将达到高峰期。

Imagine if we had spent hundreds of billions per year subsidizing giant meteors.

这就好比恐龙每给巨大的流补贴成百上千亿的路费来撞地球。

The American Meteor Society says the best time for viewing it will probably be between midnight and 5 a.m.

美国流协会表示，观赏流雨的最佳时间为午夜至凌晨5点之间。

Shower me with a show of hands if you set meteor showers.

如果你选的流雨，请举手示意我。

If it doesn't make its way all the way down to the surface it turns into a shooting star.

如果它没落在地面就我们所说的流。

The vast majority of meteoroids are small and tend to burn up in our atmosphere.

绝大多数的流都很小，而且容易在大气层中燃烧。