The Big Bang theory is more widely accepted than the steady state theory because it is supported by various lines of evidence, including the observation of the cosmic microwave background radiation, the abundance of light elements in the universe, and the distribution and movement of galaxies. These pieces of evidence provide strong support for the idea that the universe originated from a highly dense and hot state, expanding and evolving over billions of years, as described by the Big Bang theory. In contrast, the steady state theory, which suggests that the universe has no beginning or end and is constantly creating matter, has been largely disregarded due to the lack of supporting evidence and its inability to explain certain observed phenomena.
