Any model of solar system formation must explain why the planets revolve in the samedirection as the Sun rotates.

Question

Quizplus · Accepted Answer

This is known as the conservation of angular momentum and is a fundamental principle of physics. Any model of solar system formation must account for this observed phenomenon. This is known as the "conservation of angular momentum." As the cloud of gas and dust that formed the solar system collapsed, it began to spin faster and faster, just like a skater pulls in their arms to spin faster. This angular momentum was conserved, causing the cloud to flatten into a disk and the planets formed within that disk, all orbiting in the same direction as the original spin.

Any Model of Solar System Formation Must Explain Why the Planets