Objects made up of rocks and carbon or metal structures, which can be of various sizes, are called asteroid, these are orbiting around the sun but because they are small they are not considered as planets, however, they are not larger than Meteroids, it is believed that their formation is produced by the residues that remained after the formation of the solar system, most of them can be located in what is called asteroid belt, which is located between the planets Jupiter and Mars.
These rock formations are also known as minor planets, the first asteroid was discovered at the beginning of the 19th century, by the Italian-born astronomer Giuseppe Piazzi, said, asteroid was later named as the minor planet Ceres with a size of 1000Km, then of this discovery were many discoveries of asteroids, at present it is known of the existence of 2 million steroids approximately.
Large asteroids usually have impact marks, which are caused by other smaller asteroids.
At present, these structures have raised great interest on the part of the scientific community, with regard to the knowledge about their origin and formation of the same, such interest generated that diverse initiatives arise that are oriented in what is the discovery of the total of those that are in the solar system, but especially those that are close to planet Earth, the purpose of this is to keep them under surveillance, that is, to keep them controlled in a certain way, since it is believed that there are possibilities of that at some point some of these asteroids could hit the Earth's surface, for this reason they are constantly monitoring their movements.
Según los científicos, el choque de un asteroide contra la Tierra ya es un evento que ha tenido lugar, incluso hay quienes responsabilizan a dicho evento como el culpable de la extinción de un gran número de especies en el planeta entre los cuales se encontraban los dinosaurios. A pesar de que las probabilidades de que vuelva a ocurrir son mínimas, no se debe dejar de lado ya que es un peligro latente.
