Which one of these four theories about the origin of the Moon is now believed to be correct?
A) Earth and the Moon formed together, already orbiting each other.
B) The Moon formed separately in a different part of the solar nebula and was later captured by Earth.
C) Earth was spinning so rapidly while still molten that a piece spun off to form the Moon.
D) A single large object or set of smaller objects crashed into Earth, and debris from the collision formed the Moon.

Question

Quizplus · Accepted Answer

The currently accepted theory about the Moon's origin is the giant-impact hypothesis, which suggests that the Moon formed from the debris left over after a collision between Earth and a Mars-sized body.

Which One of These Four Theories About the Origin of the Moon