The universe began with an explosive force. The universe continues to expand. is that a hypothesis theory or law?

Theory

Explanation:

There is absolutely no solid proof as to how the universe came to exist, however there is a lot of valid supporting evidence that the universe came to exist because of an explosive force.

If this were a law, it would be a phenomenon that scientists have already discovered evidence for (at least twice) in nature, however this is not the case.

Law as it has been scientifically proven this is true. Some evidence to support this includes white noise and red shift