Near-Earth Objects and Their Impact on Society

Humanity has been exploring from the beginning of history. Men, women, children have the opportunity to see the beauty and splendor of the earth. From the green lush plains in America to the wonderful golden sandy beach in Africa, and the roaring blue sea, they saw a vast land on Earth. As time passed, humans calmed down and left nomads. But their desire for exploration continues. For example, Magellan, Columbus, Lewis, Clark sought new ways to heal their thirst through land, wealth, adventure.

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).

Approximately 90% of the projectiles that may collide with the Earth are short asteroids close to the Earth or short-term comets called NEO (Near Earth Objects). The other 10% are medium or long comets (comets with a period of more than 20 years), and since they use very little time in the space close to the Earth, they need to be treated separately. The trajectory of an object close to the earth approaches or intersects the orbit of the earth. Those normal orbital movements allow them to get relatively close to the Earth over a period of several years, allowing them to be discovered. The aim of the NEO survey is to find these objects when these objects regularly approach the Earth, to calculate their long-term orbits and to orbit the possibility of affecting the earth over the next several centuries It is to decide. If someone seems to be appearing on the trajectory of the Earth's collision, it is usually necessary to take corrective action at least for decades.

Geological or cosmic disasters such as the influence of things close to the earth, deadly gamma ray bursts in our Milky Way, eruption of super volcanoes, or long-term climate change of nature. Objects near the Earth (NEO) are an absolute threat to the survival of species. One foreigner's event can lead to more death and destruction than other human-made warfare and epidemics. This situation is special in extinction scenarios other than humans, as it can be considered to take measures against most of these situations.