How did the earth come into being?

The earth originated from the primitive solar nebula 4.6 billion years ago. The asteroids that formed the earth originated from the gas, ice particles and dust left after accretion and collapse, which formed a mass with a diameter of one to ten kilometers. After 1000 to 20 million years of growth, these substances finally formed the original earth. The new earth's surface is an "ocean" composed of magma.

The earth rotates from west to east and revolves around the sun at the same time. There are 4.55 billion. The primitive solar nebula originated 4.55 billion years ago.

The earth is the third planet in the solar system from the inside out, and it is also the earth-like planet with the largest diameter, mass and density in the solar system, which is about 654.38+49.6 million kilometers away from the sun.

The interior of the earth is divided into core, mantle and crustal structure, and there are hydrosphere, atmosphere and magnetic field outside the surface. The earth is the only known celestial body with life in the universe.