Which was the MOST probable time sequence for the formation of the solar system?
A) The Sun contracted first as a gas ball, and the planets and moons formed shortly afterward by accretion and condensation.
B) The Sun formed first, the planets were spun off from the Sun, and the moons in turn were spun off from the planets.
C) The planets formed first out of a cold nebula of gas and dust, followed by the Sun, which formed when the gas had become much hotter.
D) The Sun formed initially, and the planets and major moons were captured much later as they drifted by the Sun.

Question

Quizplus · Accepted Answer

The most widely accepted theory for the formation of the solar system is the nebular hypothesis, which suggests that the Sun formed first as a contracting gas ball, and then the planets and moons formed shortly afterward through the process of accretion and condensation from the surrounding disk of gas and dust. This process resulted in the formation of the planets in a roughly circular orbit around the Sun, with smaller moons orbiting the planets. Therefore, choice A is the most probable time sequence for the formation of the solar system.

Which Was the MOST Probable Time Sequence for the Formation