What is the Big Bang theory?
A)the idea that the universe as we see it formed when two massive galaxies collided together
B)the idea that the galaxy formed from the supernova explosion of a massive star
C)the idea that all matter and energy in the universe began in an unimaginably dense state, and then space itself began expanding

Question

Quizplus · Accepted Answer

The Big Bang theory is the idea that all matter and energy in the universe began in an unimaginably dense state, and then space itself began expanding.

What Is the Big Bang Theory