The American astronomers have discovered why in near-Earth space is relatively small number of large asteroids. It turns out that the asteroids grinds sun, turning them into small particles. /epochtimes.ru /
Near-Earth Asteroid considered if appropriate to the ground closer than 1.3 astronomical units. This distance creates a danger to the collision. However, these comets and asteroids can safely move in their orbits for billions of years. But sometimes the gravitational attraction of nearby planets pushes them to the world.
Photo: NASA
Before our planet came the only small meteors – small particles of dust and rocks, which are often burnt during reentry what has become of large asteroids
Scientists from the University of Hawaii in Honolulu compared the asteroids maps drawn according to the catalog of near-Earth objects with computer simulation results. it was found that the number of asteroids in near-Earth and solar space about 10 times less than it should actually be .
mystery of the disappearance of large asteroids
Astronomers have decided to solve the mystery of missing asteroids. to do this, follow the motion of several near-Earth celestial bodies in their orbits in a computer model. it was found that The sun destroys asteroids. Luminary grinds to pieces all the celestial bodies that flies closer to him than his 10-15 radii.
Photo: NASA
Previously, scientists believed that the Sun is unable to warm up to temperatures approaching asteroids, leading to destruction. Scientists have yet to figure out exactly how the asteroids are destroyed, as there are several versions.
According to one of them, the asteroid approaches the Sun is covered with cracks and split into smaller segments. Particles of these segments are blown and carried away by the solar wind. According to another version, the evaporation of gases inside the asteroid, and the pressure of light can promote it to the top speed. Because of this asteroid simply falls to pieces.
Photo: NASA
The process of destruction also depends on the brightness of a celestial body more dark asteroids should fall apart sooner than lighter, however, in any case, the asteroid’s life does not last more than 250.. . years, say astronomers
In the near future luminaries victims may be several large asteroids, astronomers are going to lead them carefully monitored to confirm or disprove his theory
Source:.. i4u. com
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