meteorite mass in russia

An asteroid caught fire and exploded violently, dragging shocks and glare in the sky of central Russia, breaking many glass doors and injuring hundreds.

A US senator commented that the US government invested a lot of money in the program to track objects near the earth, but their devices still could not detect meteorites falling on

Many large and small devastations by meteorites have occurred throughout the history of tens of billion years of Earth existence. Many countermeasures have also been studied.