Outside the solar system, there are many stars, and around these stars, there are still many planets orbiting, they have different changes in the process of evolution, and the number of these planets is very large.
The number of planets orbiting the stars is very large, and outside the solar system, scientists have discovered a very large number of planets through the observation and study of the surrounding stars.
The planetary systems around these stars sometimes outnumber the planets in the solar system. The types of planets in these planetary systems observed by scientists are also different, including terrestrial planets, gaseous planets, and so on.
The evolution of megaplanets
The evolution process of planets is also a very complex astronomical phenomenon, and among the observed planet types there is such a giant planet, its existence, and the evolution process scientists have also made several speculations about it.
The formation of a giant planet was initially formed by the evolution of a huge gas cloud, where the core of the planet gradually began to coalesce, and as the mass of this core became heavier, a giant planet was eventually formed.
It has an evolutionary process similar to that of a star, but its mass is much smaller than that of a star, and such a strange phenomenon cannot be explained by scientists.
Another theory for the appearance of giant planets is that they also evolved from nebulae, but because the magnetic field formed inside them was not too stable, they eventually formed giant planets.
However, these theories do not prove why it evolved in the same way as stars, but ultimately failed to form stars, and ended up with giant planets.
Until scientists came up with another theory, the core theory of the formation of gas clouds, in the process of core formation, because of the instability inside the core, it eventually split after the core accumulated a large amount of matter.
Since the split parts will continue to condense, and eventually after the condensation and evolution, a giant planet will be formed, and because of its core split, it will not be as massive as the star.
Such a statement confirms the gap between the giant planet and the star, and also explains its evolution, and the existence of planets has other ways and evolutions.
Evolution of gaseous planets
Gas planets are also giants compared to giant planets, but gas planets do not have a solid surface despite their massive mass.
A gaseous planet is a massive planet composed mainly of gases such as hydrogen and helium, which form an atmosphere that covers and surrounds a rocky core.
The mass of the gas planet is also very large, several times or even dozens of times the size of the Earth, and its radius is also much larger than that of the Earth, which is usually several times the size of the Earth.
Because gaseous planets are made up of gases and liquids, their atmospheres are very thick, usually reaching thousands or even tens of thousands of kilometers thick.
The gas planet is very massive because of its mass, which also leads to the very high atmospheric pressure of this gas planet, which can reach hundreds of times the pressure on the surface of the earth.
The gas planet also has a very strong magnetic field, which is generated by the electric current inside the gas planet.
The formation and evolution process of gaseous planets is usually considered to be through the condensation of the core, which initially condenses into a rocky core, and then attracts the surrounding gas from the rock core, and finally attracts the surrounding gases, making the gaseous planet gradually increase.
As the mass of the planet gradually increases, its own gravitational pull will also compress the gas into the atmosphere, and finally wrap it firmly, and eventually form a gaseous planet.
Such gas planets also exist in the solar system, Jupiter, Saturn, Uranus, and Neptune are all gas planets, and there are also many gas planets in the planetary system outside the solar system.
Evolution of terrestrial planets
There are also many terrestrial planets in the planetary system outside the solar system, such as rocky planets such as Mars, and their evolution process is also a very complex and long astronomical phenomenon.
In very young galaxies, large amounts of gas and cosmic dust begin to accumulate under the gravitational pull of stars.
With the accumulation of matter, gas clouds and other gas clouds were gradually formed, and with the development of the evolutionary process, the initial structure of the planet was finally formed.
These gases and dusts combine with each other to form the primordial core of the planet, and when these gases and dusts are dense enough, they form solid particles.
As the original core of the planet grows larger, the core itself begins to generate enough gravity, which will also attract more gas and dust in the surrounding area, and as the gas increases, the gravitational force compresses these gases and eventually forms the atmosphere.
As the planet continues to attract surrounding matter, it also increases the mass of the planet, and in the process, the internal structure of the planet begins to diverge, forming a solid core and an outer atmosphere of gas.
As the planet evolves, there will also be the escape of gases or solids, or the material that attracts other celestial bodies in the vicinity, and different surrounding environments will affect the evolution process of the planet.
When the evolution of the planets gradually stabilizes, the formation of the atmosphere gradually tends to stabilize, and the planets also release gas from the inside and capture gas from the outside.
The interior of the planet also began to appear different structures, whether it is magmatic activity or plate movement, etc., these activities will have a certain impact on the planet's crust and atmosphere.
As the planet's interior and exterior become stable, the existence of the atmosphere will also have a very important impact on the planet's climate and biological environment.