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
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.
— Simon Proud March 18, 2019 But you likely didn't know about it until now, because scientists only just noticed it. That's because the area where the fireball exploded, over the Bering Sea, is extremely remote. Read MoreNASA's Planetary Defense Officer Lindley Johnson told the BBC such a powerful meteor event only happens a few times every 100 years. CNN has reached out to NASA for additional comment.
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