As proven by the Chelyabinsk meteor incident in 2013, NEOs will occasionally crash into our planet.

The Chelyabinsk incident unfolded when an undetected 56.6ft-wide (20m) rock slipped into the atmosphere and exploded over Russia before reaching the ground.

The resulting airblast injured more than 1,000 people watching the bright fireball with shards of broken window glass.

According to NASA, a hundred tons small rocks and sand grain-sized orbital debris pelt the planet every single day.

Larger, car-sized asteroids are estimated to strike somewhere on the planet at least once a year.



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