Is the early history of the solar system hidden in asteroids and meteorites?

It is not believed that any rock coming from space on Earth at the present time can also be related to the past of our solar system. Scientists have claimed that the meteorite that exploded over the Russian city of Chelyabinsk nine years ago was related to a major collision in space, which resulted in the birth of the Moon. Keep in mind that the 19 meters wide meteorite exploded, causing extensive damage and injuring more than 1600 people. Scientists have made a new claim about the Chelyabinsk meteorite based on a new method of scheduling rock collisions in space. This method is based on the microscopic analysis of minerals present inside meteorites.

Our solar system was formed about 4.5 billion years ago. The study of asteroids and meteorites is of particular interest to scientists, as they consider them to be part of the upheaval that occurred during the formation of the Solar System. The Solar System began when a disk of dust and gas began to revolve around the budding Sun. During this time, the planets were formed after the continuous collision of small rocks. History on Earth and other planets is very difficult to trace, as geological and weather processes have erased all evidence. The marks of large blows can also be hidden on the surface.

Asteroids are inactive bodies and move about in the emptiness of space. They remain unchanged. After being caught by Earth’s gravity, they fall to the surface in the form of meteors. Scientists have methods to determine the time of ancient collisions in space based on the minerals present in meteorites. One of these methods is the age determination of uranium and lead in zircon crystals. In addition, meteorite strikes can also partially or fully re-determine the age of radioactive minerals. By this method, scientists discovered that the Chelyabinsk meteorite is related to two collisions. One of these collisions happened 4.5 billion years ago and the other 50 million years ago.

Geologist Craig Walton of the University of Cambridge in the UK and his colleagues studied the phosphate minerals in the meteorite to confirm the timing of these collisions. The timing of meteorite strikes is often controversial. Concrete evidence is needed to reach any conclusion. It’s like investigating an ancient crime scene. Further research is needed on this topic, but this technique will help to better understand the early history of the Solar System.

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