International Asteroid Day is observed today, the 30th of June. It celebrates to raise public awareness about the asteroid impact hazard and to inform the public about the crisis communication actions to be taken at the global level in case of a credible near-Earth object threat.
An asteroid is a minor planet of the inner Solar System. The sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to dwarf planets almost 1000 km in diameter; they are metallic or rocky bodies with no atmosphere.
Asteroid Day is an annual global event held on the anniversary of the Tunguska event in 1908 when an asteroid leveled about 2,150 square kilometers of forest in Siberia. The United Nations has proclaimed it be observed globally on June 30 every year in its resolution.
This will happen if an object hit
If a meteor size of a car fall to the earth would cause a very bright streak across the sky, and would probably heat up so much on its passage through the atmosphere that it would explode into a shower of smaller pieces that would hit the ground individually.
