美国有线新闻 CNN 一颗流星在大气层爆炸 3个月后才被发现

 

MICHAEL GARNETT: My entire apartment started shaking and there was a huge boom. I was just terrified. I had no idea what was happening.

AZUZ: So if a meteor explodes in the atmosphere and no one's around to hear it, does it make a sound? NASA said it did. The fireball that blew up 16 miles over the earth's surface in December was the second most powerful one to enter our atmosphere in 30 years according to the space agency. So why wasn't this reported in December? Because scientists just noticed it. It was originally detected by military satellites and reported to NASA afterward¹. Why didn't pictures and video go viral on social media like those of other fireballs do?

Because it happened over the Bering Sea in a pretty remote part of the world and relatively² few people noticed. What exactly caused a blast that powerful? A meteor that scientists say was probably a few meters across. That's all it takes to release 173 kilotons of energy. And for reference one kiloton is equivalent to 1,000 pounds of TNT. Should you be worried about another one? Scientists say, no. Most fireball events are smaller. There have already been five note worthy³ explosions in 2019.

1 afterward   

adv.后来；以后

参考例句：

• Let's go to the theatre first and eat afterward. 让我们先去看戏，然后吃饭。
• Afterward,the boy became a very famous artist.后来，这男孩成为一个很有名的艺术家。

2 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

3 worthy   

adj.(of)值得的，配得上的；有价值的

参考例句：

• I did not esteem him to be worthy of trust.我认为他不值得信赖。
• There occurred nothing that was worthy to be mentioned.没有值得一提的事发生。