I think you mean "protoplanet hypothesis". In fact, astronomers usually call it the Nebular Hypothesis A protoplanet is a planet-like object that hasn't fully developed into a planet. Why that hypothesis? It's because it is the best we have to describe the origin of the solar system according to the Laws of Physics.
hydrogen and helium
hydrogen and helium
hydrogen and helium
it was proposed by edward Édouard Roche it's not so real .... no supporting evidence is there for this hypothesis
nebular hypothesis
the solar system
The Nebular Hypothesis.
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rotating cloud
The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests that the Solar System formed from nebulous material.
It indicates about the Origin of Solar System as per Nebular Hypothesis.
I think you mean "protoplanet hypothesis". In fact, astronomers usually call it the Nebular Hypothesis A protoplanet is a planet-like object that hasn't fully developed into a planet. Why that hypothesis? It's because it is the best we have to describe the origin of the solar system according to the Laws of Physics.
The nebular hypothesis
The hypothesis of solar energy states that solar energy will be one of the leading sources of energy in the world in the years to come.
It was first proposed in 1734 by Emanuel Swedenborg. Originally applied only to our own Solar System, this method of planetary system formation is now thought to be at work throughout the universe. The widely accepted modern variant of the nebular hypothesis is Solar Nebular Disk Model (SNDM) or simply Solar Nebular Model.
hydrogen and helium