What Is the Solar Nebula?

The solar nebula is a nebula composed of gas and dispersed solid particles in the universe before the formation of the sun and solar system. It shows a hypothesis of the evolution of the solar nebula proposed by Kamaijiang. He believes that it starts as a rotating spherical nebula and then forms a disc.Because of strong convection and other mechanisms, angular momentum is transferred outward, and in The central part forms the sun through condensation, forming terrestrial planets and large planets from the inside out. In recent years, it has been proposed that the radiation pressure and shock wave of the supernova near it caused it to condense into the sun and the solar system. ^[1]

Solar nebula

The temperature of the nebula is only tens of K, the density is 10 ^-20 10 ^-8 g / cm ³ , and the central part

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At that time our descendants will not know how to survive (if there are still our descendants at that time), maybe there is any way to maintain our earth, turn it into a super spaceship, change the orbit, fly away from the solar system, fly away The Milky Way, to set up a new home for the earth in a wider space; perhaps to abandon the earth ruthlessly (after all, people can do everything), all human beings take the huge Noah's ark with animals and plants, water, manufacturing Oxygen, and pots and pans to find alternatives to the earth.

Maybe these topics are too big and too far away, but for me who do nt know who I am more and more, I may be standing high enough to see some things. How high is that place, so high that it looks like myself? A grass seed, human beings look like a grass seed, so is the earth, so is the solar system, and the Milky Way is also grass seeds. When the wind blows, there is no trace and no trace can be left. The sun is in its youth.

Solar nebula map (4 photos)