According to US media reports, NASA successfully crashed a spacecraft into an asteroid 7 million miles from Earth. NASA used a 610-kilogram detector to actively impact the asteroid, and at the same time used the Space Telescope and the ground Observatory to observe the changes in the asteroid's motion state and parameters.
It is understood that this asteroid called "Dimorphos" has a diameter of 160 meters and orbits the asteroid "Didymos", a 780-meter-wide width. The goal of this "Dual Asteroid Redirection Test" (DART) mission is the "Dual Asteroid System". According to the initial plan, the asteroid orbital period may be changed after the impact occurs.
Dimoffus is a very common asteroid. Although it is much smaller than one kilometer wide, it is enough to easily destroy a city. In 2013, a 20-meter-wide asteroid exploded over Russia. The explosion amount was equivalent to 500 tons of TNT, which was about one-third of the power of the little boy in Hiroshima , causing more than 1,400 casualties.
Everyone knows that dinosaurs are extinct because of the asteroid impact on the earth. NASA's double asteroid impact steering test is to change the orbit of the asteroid to avoid the asteroid impact on the earth. In the future, such technology can be used to solve asteroids that are potentially threatening to the earth.
This experiment is of great significance to humans, and it is one step further to prevent dinosaur-like destruction. The plot in " Star Trek " is now a reality. If humans hit an asteroid, which can temporarily change the orbit of the asteroid, can it completely change the gravitational field that restricts the asteroid's movement?
Some netizens believe that there is one thing that has to be guarded against. The United States uses impact to change the trajectory of the asteroid, and then let the asteroid impact its hostile countries at a certain time, or use the asteroid to impact other countries' satellite . Never overestimate the bottom line of American politicians, they can do anything!
should calculate the trajectory quickly. The United States is now the world's top computing power, so don't let them get hurt! If an asteroid is developed into a space weapon, changing the orbit of the asteroid into a certain country if necessary, it may have devastating consequences. If the United States masters this technology, it will pose a major threat to world peace.
Science and Technology has no borders, but people who have developed and used the research and development process have nationality. It should be recognized that the United States' impact on extraterrestrial celestial bodies this time is a beneficial experiment for the safety of the earth on which all mankind relies for survival. Its positive significance must be affirmed. However, if this technology is used in game between big powers, it is also a terrible weapon. Any other advanced technology is two-sided if used in the game between countries around the world. The key is how humans themselves use their wisdom to grasp it.
