What is the most important factor for the formation of our planets?
Gravity pulled matter into the center core, nuclear fusion began, and our Sun was created. Remaining matter and gas clumped together to form the planets.
What evidence is there for the nebular theory?
What Evidence do we have of a Nebular Theory-type development? We have observed discs of gas and dust around other stars. We can also see evidence of stars and planets forming in clouds of gas and dust; young planet systems in the making are called Proplyds.
Why was the nebular theory rejected?
The main problem involved angular momentum distribution between the Sun and planets. The planets have 99% of the angular momentum, and this fact could not be explained by the nebular model. As a result, astronomers largely abandoned this theory of planet formation at the beginning of the 20th century.
What is nebular theory of Laplace?
Nebular Hypothesis, an explanation of how the solar system was formed, proposed by Pierre Simon de Laplace in 1796. Laplace said that the material from which the solar system was formed was once a slowly rotating cloud, or nebula, of extremely hot gas. The most serious concerns the speed of rotation of the sun.
What is the view regarding the origin of Earth according to Kant?
Kant’s central idea was that the solar system began as a cloud of dispersed particles. He assumed that the mutual gravitational attractions of the particles caused them to start moving and colliding, at which point chemical forces kept them bonded together.
Who postulated the Laplace’s nebular theory?
Kant
Which of the following is the fastest planet?
(Grades 5-8) series. Mercury is the smallest and fastest planet in the solar system. It is also the closest planet to the sun. It is named after the Roman messenger god Mercury, the fastest Roman god.
Which planet spins the fastest in our solar system?
Jupiter