If matter cannot be created from nothing then how did the universe create matter from nothing?

Answer 1

It is religion that makes such a claim, not science. Science can go no farther back than the small bundle of unimaginably high energy that is thought to have spawned the 'big bang', the expansion of the energy that eventually became the universe as we know it. And in fact science readily admits that even going back that far requires a great deal of speculation, even if that speculation outlines a succession of processes that is substantially defensible.

Spontaneous creation of matter (or energy) is not compatible with the known processes of the physical universe as it now exists.

Sources for the Big Bang

Although it is purely speculation, it is suggested that the energy which formed the universe was either 1) already present, or 2) transferred, transformed, or siphoned from another universe, dimension, or reality. At the instant of the Big Bang, the energy density of the singularity would have been finite but almost inconceivably large, such that its release would have spontaneously generated quarks that combined to form all of the matter currently in existence. This mass includes all stars, galaxies, black holes, and interstellar dust, as well the "dark matter" which is only apparent in large-scale gravitational phenomena.

Answer 2

The origin of matter in the universe is still a subject of scientific research and speculation. The Big Bang theory suggests that all matter in the universe was present in a dense, hot state at the moment of the Big Bang, and has since evolved and transformed through various processes. The question of how the universe came into being from nothing is a complex philosophical and scientific question that continues to be explored by physicists and cosmologists.