The universe may, or may not have started with the "big bang". "The Big Bang Theory" is just a proposition, a statement that assumes that the universe was formed as a result of a big explosion. As a theory, it is therefore, open to criticisms and is subject to verification through demonstration of proof. The fact is that, none of us was actually there when the universe was forming and so, we rely on theories such as this to explain its formation.
Yes, I seen it on this show i think the universe or nova oh well scientist found out there is still heat from the big bang and backround radiation the big bang theorised of antimatter and matter touched and ahhnillayed each other they think there was lots AM(anti-matter) and matter annihilating each other.
Creationism: God created us all, Adam and Eve mated and had kids. Their kids, who were brothers and sisters to each other, indulged in incest and had more babies and all of us started from there. Science: google "particle collider" and read about the tiny particles which existed fraction of a second after Big Bang happened. Science does not have all tje answers YET, but it sure does not believe in us all springing out of sex between a brother and a sister.
The universe could not have started by the Big Bang. It has never been observed that matter can assemble itself. It has never been observed that life can start by itself. And it has never been observed that one organism can evolve into a more complex organism. More specifically on the Big Bang. This universe is run by laws (gravity, time, physics, ect.) if the universe started with a Big Bang, where did all the laws come from? If a central explosion threw out all the matter, why isn't the matter evenly distributed? Why do we have big clusters of stars known as galaxies? If the universe started as a spinning dot, why are there planets, moons, even whole galaxies spinning backwards? As you can see, there's too much that the Big Bang can't account for. Many people might say "We don't have all the answers yet." Well, that's fine, just don't call it science. Because one thing is quite clear with observable science: It can't predict the future.