...

2 views

Nebular Hypothesis.
Everything begins with dust and progresses to the formation of massive
particles that resemble planets. what causes..
The nebular hypothesis is the idea that a
spinning cloud of dust made of mostly light elements called a nebula, flattened into a protoplanetary disk and become a
solar system consisting of a star with orbiting planets. The theory was developed by Immanuel Kant. The widely
accepted modern variant of the nebular theory is solar nebular model. It offered
explanation for a variety of properties of the solar system, including the nearly circular and coplanar orbits of the planets, and their motion in the same direction as the sun's rotation. Some elements of the original nebular theory are echoed in modern theories of planetary formation,
but most elements have been superseded.
According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen-giant molecular clouds. These clouds are gravitationally unstable, and matter coalesces within them to smaller denser clumps, which then rotate, collapse, which always produces a gaseous protoplanetary disk around the young star. This may give birth
to planets in certain circumstances, which are not well known. Thus the formation of planetary system is thought to be a natural state of star formation. The spinning nebula collected the vast majority of materials in its center, which is why the SUN accounts for over 99% of the mass in the solar system. As our solar system formed the nebular cloud of dispersed particles developed distinct temperature zones.Temperatures were very high close to the center, farther from the SUN The temperature were lower. This way the planets hold the temperature differentiation.
#WritcoStoryPrompt98
A small compilation from Astronomy.
Mishra Poonam