On the other hand, the steady state theory, which proposes that the universe has always existed in the same state without any beginning or end, lacks strong scientific evidence. It fails to explain the observed cosmic microwave background radiation and the abundance of light elements in the universe. The steady state theory also fails to explain the redshift of distant galaxies and the expansion of the universe. Overall, the scientific evidence strongly favors the big bang theory over the steady state theory.

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The steady state theory, which posits that the universe has no origin or end and exists in a constant state, lacks solid scientific evidence as it fails to account for various observed phenomena. These include the cosmic microwave background radiation, the abundance of light elements, the redshift of distant galaxies, and the expansion of the universe. Consequently, the big bang theory is strongly supported by scientific evidence in contrast to the steady state theory.