A meteor exploded in the Earth's atmosphere....

今日の英語の習慣化の題材です。

隕石が地球の大気圏に落下し、燃え尽きると言うか、爆発的なエネルギーがHiroshimaに落とされた原爆の10倍にも当たると言うニュースです。

CNN - While you were living your life on December 18th, 2018, a giant space rock exploded 16 miles above the Earth's surface, giving off 10 times the energy of the atomic bomb detonated over Hiroshima. No big deal.

The event is properly called a "fireball," NASA's term for "exceptionally bright meteors that are spectacular enough to to be seen over a very wide area."
With an impact energy of 173 kilotons, December's fireball was the second-most powerful to enter Earth's atmosphere in 30 years. You may recall the first -- it was that huge, blinding fireball that rocked parts of Russia in 2013.