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Is it know why the Earth's core, and indeed the cores of other planets, are "hot" while some are cold? Is it possible that fusion or fission processes are taking place there ?
Mk said:Is it that, the sun contains thermonuclear fusion specificly because it is of high enough mass?
The mystery surrounding planetary cores is whether they were formed through fission, the splitting of a larger body, or fusion, the combining of smaller bodies. This debate has been ongoing for decades and has not yet been definitively answered.
One piece of evidence for fission as the origin of planetary cores is the fact that many planets and moons have irregular shapes, which could be due to them being formed from the breaking off of a larger body. Additionally, the composition of some planetary cores is similar to that of the larger body they are thought to have originated from.
Some scientists argue that the high temperatures and pressures necessary for fusion to occur are more likely to be found in the early stages of a planet's formation, making it a more plausible explanation for the creation of planetary cores. Additionally, the formation of certain types of minerals found in planetary cores can also be explained by fusion processes.
The debate surrounding planetary cores is important because it can provide insights into the early stages of planet formation and the processes that shape the structure and composition of planets. Understanding the origin of planetary cores can also help us better understand the formation of our own planet, Earth.
Scientists are currently using a variety of techniques to study planetary cores, including analyzing data from space missions, conducting experiments in laboratories, and using computer simulations. These efforts aim to gather more evidence and data to help determine whether fission or fusion is the dominant process in the formation of planetary cores.