UNIVERSE
OVERVIEW OF THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Condensation theory
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Core-accretion theory
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Nebular theory
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Gravitational Instability theory
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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. The Sun formed in the center, and the planets formed in a thin disk orbiting around it.
Detailed explanation-2: -According to the nebular hypothesis, massive clouds of hydrogen and helium collapsed. After the collapse, the center of the cloud became hotter and hotter. Then, as it got hotter and more condensed, the system began to rotate. This was the beginning of the solar system’s formation.
Detailed explanation-3: -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 the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets.
Detailed explanation-4: -According to this theory, the Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust. Then, about 4.57 billion years ago, something happened that caused the cloud to collapse.