1 1 Asteroids may eventually hit the Earth.

The consequences of asteroid impact on the earth are very serious, so NASA has also spent a lot of manpower and material resources to predict asteroid impact on the earth. Recently, the news that 1 1 asteroid may eventually hit the earth has attracted people's attention. Then let the constellation knowledge reveal the secret for everyone!

1 1 Asteroids may eventually hit the Earth.

A few days ago, the computer algorithm of Leiden University in the Netherlands discovered 1 1 asteroids, which may eventually hit the earth, causing "unprecedented damage". Because of their chaotic orbits, NASA software missed all these orbits, and it is difficult for current technology to predict and identify their potential dangers.

The British "Daily Mail" reported on February 20th that each of these asteroids has a diameter of more than 328 feet (about 100 meters), and the distance when passing through the Earth is 10 times that of the Earth and distance to the moon. However, these space rocks will not pose a threat in our lifetime, because they will only approach the earth between 2 13 1 and 1923.

In the research of scientists, astronomer and simulation expert Simon Portergis Zwart and his colleagues designed a so-called neural network to find potentially dangerous asteroids. In order to do this, they first simulated the orbits of the sun and its planets in the next 6,543,800 years, and tracked the relative positions of different celestial bodies. Next, they gradually "reversed" the simulation and simulated what would happen if the asteroid was "thrown" from the earth into space.

When they run it again, they create a hypothetical asteroid database. These asteroids with known orbits will eventually collide with the earth, allowing the research team to study the distribution of these asteroids in the simulation. Then, the researchers use this hypothetical library of dangerous asteroids to train neural networks to identify asteroids that may be dangerous in the real world.

The first set of calculations to simulate the solar system and man-made asteroids were all carried out using Alice, a powerful new supercomputer of Leiden University. However, once trained in asteroid observation, the "neural network" itself can run on a simple laptop. The team named their system "Dangerous Object Identifier", or "HOI", which means "Hello" in Dutch.

After testing, the researchers found that HOI can find the well-known dangerous near-earth asteroids. In addition, it can also select 1 1 new asteroids that have not been listed as potential threats before. All the results of this study were published in the journal Astronomy and Astrophysics, and the research team said that finding asteroids colliding with the earth as early as possible will enable humans to formulate strategies to prevent collisions.