Meteoroids become meteors when they enter our atmosphere and meteorites when they hit the ground.

流星进入地球大气层时会变成流星，撞击地面时变成陨石。

Some people thought it was a meteor shower.

有人以为是一场流星雨。

Those are the meteors, not to be confused with meteoroids or meteorites.

那些就是流星，不要和流星体或陨石搞混。

It's the first meteor shower of Spring.

天琴座流星雨是春季的第一场流星雨。

Others speculated it was a meteor or aliens.

人则猜测它是一颗流星或者外星人。

On Mercury, without that atmosphere, the asteroids and meteors smack down at full throttle.

水星上没有大气陨星直接全速撞击水星表面。

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

科学家说这颗流星的直径可能只有几米。

So if a meteor explodes in the atmosphere and no one's around to hear it.

所以如果一颗流星在大气中爆炸而周围没有人能听到。

We get questions here all the time about comets, asteroids, meteors, meteorites. What's the difference?

我们对彗星、小行星、流星和陨石一直存在疑问，它们有什么不同？

It's believed to have been a meteor.

据信那是一颗流星。

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

这就好比恐龙每年给巨大的流星补贴成百上千亿的路费来撞地球。

Venus has been hit hard with meteors.

金星，被陨星撞击。

Wedding lanterns, balloons, Venus, meteors, the Moon, satellites, and so on.

婚礼彩灯、气球、金星、流星、亮、卫星等等。

Typically, from any one location, you can see a few meteors per hour.

通常，在任何一个地方，你每小时都能看到几颗流星。

Meteors, asteroids, and comets struck my surface for a billion years.

从十亿年前开始，流星、小行星和彗星不断撞击我。

Get out! I couldn't stop if a meteor hit me.

少来了，我就算被 陨石打中也停不下来。

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

如果你选的是流星雨，请举手示意我。

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

我们总是收到很多有关彗星、小行星、流星，陨石的问题。

They've been through all kinds of things, meteor strikes, climate changes, you name it.

它们经历了各种各样的事情，流星撞击，气候变化，各种各样。

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

如果一颗巨大的流星坠落地球会发生什么呢？