Question

According to the big bang theory, the universe began about ____ years ago.

Answer 1

Answer:

~13.7

Explanation:

Big bang theory is the best theory which explains how this universe came into being. This theory gave an approximate date of the universe and how it is formed. The explanation is given by observing the movement of galaxies away from our own and they all have originated from ancient singular sources of very high temperature and density. Although there exist many questions to answer, big bang theory is the most acceptable theory till now.