Formation of earth and solar system in hindi. Nebular hypothesis. Limitations of nebular theory

Nebular hypothesis:
The Nebular Hypothesis suggests that the Sun and the planets formed from a large cloud of gas and dust, known as a nebula. According to this theory, the nebula collapsed under its own gravity, forming a spinning disk."
"As the nebula collapsed, it began to spin faster due to the conservation of angular momentum, much like a figure skater pulling in their arms during a spin."
"Most of the material was pulled to the center, forming the protosun - the early Sun. The rest of the material spread out into a protoplanetary disk."
"Within the disk, particles began to collide and stick together, forming larger bodies called planetesimals."
"These planetesimals continued to collide and merge, eventually forming the planets we know today."
"Once the protosun reached a critical temperature, nuclear fusion began, and it ignited, becoming our Sun."
"While Laplace's Nebular Hypothesis laid the foundation, our understanding of solar system formation has evolved with new discoveries. Today, we observe similar processes occurring in distant star systems, confirming that Laplace was on the right track."
"The Nebular Theory of Laplace offers a fascinating glimpse into the origins of our solar system, reminding us of the dynamic and ever-changing nature of the cosmos."
Limitations of the Nebular Theory
1: Lack of Explanation for Angular Momentum: "One major limitation of Laplace's theory is its inability to fully explain the distribution of angular momentum in the solar system. According to the theory, the Sun should have most of the system's angular momentum since it contains most of the mass. However, the planets actually possess most of the angular momentum."
2: Difficulty in Explaining the Formation of the Sun’s Magnetic Fields : "The Nebular Hypothesis also struggles to explain the Sun’s complex magnetic fields, which are essential in the solar system's dynamics and evolution."
#NebularTheory #LaplacianTheory #earth

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