Why is the Big Bang Theory a theory and not a law?

There is no way to find out if there even was a universe before , therefore no one knows the answer on your question. We don't even know how big...

My estimate is attributed to other estimates. Our universe has had expanded through 13.8 billion light years in 13.8 billion years. So, I have reference for okaying my estimate.....

It is theorized that at the moment of energy was contained in a singularity which means there is no space-time.

In the natural sciences we make observations and construct models. If those models are consistent with our observations then we can make predictions from those models and test them against...

Special Relativity resulted in the famous $E = mc^2$ formula that equated mass and energy, as set down the means by which a massive burst of energy could eventually have...

Not to oversimplify this but the very nature of "theory" means that an absolute proof does not exist. In the case of the development of the early universe, it will...

This is a question that still lies outside of our knowledge, and may always continue to do so. Physics today can do a creditable job of outline the events that...

It is also, undeniably, incomplete, as it does not explain where the matter came from - just that there was a large explosion. However, it is incorrect to say it...

Hubble's law shows the mathematical relationship between the distance from and rate of expansion observed. The further from the earth the faster the object is moving away from the earth....

Actually Hubble's law was discovered before theory was formulated. The Big Bang Theory is an attempt to explain the observations that led to Hubble's Law. Before the 1900s the...