Subsequent Evolution
The planets were originally thought to have formed in or near their current orbits. However, this view underwent radical change during the late 20th and early 21st centuries. Currently, it is thought that the Solar System looked very different after its initial formation: several objects at least as massive as Mercury were present in the inner Solar System, the outer Solar System was much more compact than it is now, and the Kuiper belt was much closer to the Sun.
Read more about this topic: Formation And Evolution Of The Solar System
Famous quotes containing the words subsequent and/or evolution:
“And he smiled a kind of sickly smile, and curled up on the floor, And the subsequent proceedings interested him no more.”
—Francis Bret Harte (1836–1902)
“Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.”
—Konrad Lorenz (1903–1989)