What caused the Big Bang and the expansion of the universe?
A) separation of the strong nuclear force as a distinct force
B) decoupling of radiation from matter
C) unknown cause, with expansion starting suddenly and continuing to this time
D) universal repulsive force stronger than the gravitational attraction between matter in the universe

Question

Quizplus · Accepted Answer

The Big Bang and the expansion of the universe are attributed to an unknown cause, with the expansion starting suddenly and continuing to this time. The specific cause of the Big Bang is still a matter of scientific investigation and debate.

What Caused the Big Bang and the Expansion of the Universe