The Impact of an Asteroid on Earth

Asteroids' impact on the Earth Asteroids move through space, fragments of heavenly bodies from various sources, fragments formed by the solar system, branches of the parent asteroids, or comets that lose their light. However, if an asteroid collides with the Earth, the result will be a worldwide disaster, life on our planet may end. The explosion will be close to the explosion of one million tons of TNT - 1600 times the height of the most powerful nuclear weapons so far (Barnes-Svarney 234).

The influence of the asteroid about 10 kilometers on Earth historically caused extinction including the eradication of dinosaurs on the earth. Long-period comets can collide several times faster than asteroids close to the Earth, making their effects more destructive. In general, the warning period for such events can be only a few months, which is much shorter than the period of performing offset work. This should be shocking, as it is necessary to formally and globally recognized plans to deal with threats such as the impact of asteroids. To avoid collisions with these impactors, we can use destructive or deflective solutions (such as gravity tractors).

From the late 20th century to the beginning of the 21st century, scientists detected NEO and took steps to predict the date and time that asteroids struck the earth and the places they hit. The International Astronomical Union Asteroid Center (MPC) is a worldwide information center on orbital information of asteroids. NASA 's sentinel system constantly scans the MPC catalog of known asteroids and analyzes the trajectory of possible future effects. No one is currently predicted (The only highest probability impact currently being mentioned is ~ 7 m asteroid 2010 RF 12, this is due to the influence of September 2095 of the earth, only 5% of the impact It is expected).

An asteroid near the Earth or an Earth-near object is an asteroid whose trajectory passes through an orbit close to the Earth. Asteroids actually crossing the earth's orbit are called Earth Passer. As of June 2016, 14,464 asteroids on Earth are known and its data is estimated to be 900-1000 with a diameter of 1 kilometer. The size of an asteroid varies greatly from a maximum of 1000 km to a rock of 1 m width. The largest of the three is very similar to a miniature planet. However, the majority are much smaller and irregular shapes; they are considered to be surviving stars or fragments of larger bodies.