Science research overwhelming supports a physical universe with a beginning. A moment before creation there was no space, matter, energy or time. Then suddenly everything in our physical universe came into existence. This is informally labeled, “The Big Bang.” There are many different types of big bang theories, but they all have the same general principles. They all support a universe that has a beginning.
There are philosophical arguments that there are countless universes and we are just in one that supports life. There are philosophical arguments that our universe was birthed from another universe and so on and so on. I say philosophical because there is no scientific research showing anything but a big bang single creation event. All else is imagination, thus far.
Two of the most basic laws of physics are:
I call that something “God.”