UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The young solar nebula begins to collapse because of gravity.
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Small planetesimals collide with larger ones, and the planets begin to grow.
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Either A or B
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None of the above
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Detailed explanation-1: -The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula.
Detailed explanation-2: -As the nebula collapses, it heats up, spins faster, and flattens. The Sun formed in the very center of the nebula. We have observed disks around other stars. These could be new planetary systems in formation.
Detailed explanation-3: -History of the Nebular Hypothesis: In this treatise, he argued that gaseous clouds (nebulae) slowly rotate, gradually collapsing and flattening due to gravity and forming stars and planets.
Detailed explanation-4: -Our solar system formed at the same time as our Sun as described in the nebular hypothesis. 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 became a solar system consisting of a star with orbiting planets [12].