We don’t even track meteorites this small

In 2012 an NEA (near Earth asteroid) that was only 17 meters across exploded above the earth 20 kilometers south of the Russian town of Chelyabinsk. When the shock wave hit the city 100,000 windows were smashed and 1500 people were injured. This was the first time in recorded history that multiple injuries were caused by a single meteorite. The energy was about 30 times the explosive energy of the atomic bomb at Hiroshima.

(The Great Courses – A Visual Guide to the Universe)

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