A new analysis of iron isotopes collected from meteorites Earth required a mere 5 million years to form, which is a considerably shorter timeframe than it was thought in the past. The new data contradict current models but will play an essential role in the case of future research.
It is also important to note that researchers will have a better understanding of planet formation. It appears that the mechanics that contribute to the process could be more diverse than it seems, even in the case of similar planets that are found within the boundaries of the same solar system.
While there are several theories related to the formation of planets, many of the smaller details remain elusive. A significant role place by the creation of a nearby star, which takes place when massive amounts of cosmic clouds and gas collapse due to their gravity and start to spin. The material will, by the motion and start to move, forming a flat disc that is consumed by the star.
New facts about the evolution of Earth provided by a new analysis of iron isotopes
In many cases, some material will remain in the form of the protoplanetary disc, and it will contribute to the appearance of new planets. This explains why all the planets found in the solar system follow a flat plane around the sun.
During planetary formation, heavy dust and rocks will cling to each other, growing in size and attracting other nearby rocks. In time a gravitational pull will appear and a new planet. In the case of the Earth, researchers thought that the process lasted for tens of millions of years. However, data collected from the iron isotopes located in the mantle of our planet infers a different timeline.
A different formation model of the iron core of the planet may have formed in the aftermath of heavy rains of cosmic dust. More data can be found in an article published in a scientific journal.