In three to five sentences, evaluate the scientific evidence that supports the big bang theory and the steady state theory.(4 points)
The scientific evidence supporting the big bang theory is substantial and includes the observation of the expanding universe, the detection of cosmic microwave background radiation, and the abundance of light elements. The observation of distant galaxies moving away from us at speeds proportional to their distance provides strong evidence for the universe's expansion, as predicted by the theory. The detection of cosmic microwave background radiation, sometimes referred to as the "afterglow" of the big bang, is another piece of evidence that supports the theory. The abundance of light elements, such as hydrogen and helium, is consistent with the conditions in the early universe as predicted by the big bang theory.
On the other hand, the steady-state theory, which suggests that the universe has always existed in a state similar to its current state, has less scientific evidence to support it. While it gained some popularity in the mid-20th century, the discovery of the cosmic microwave background radiation and the observation of the expanding universe provided strong evidence against the steady-state theory. The fact that the universe is not in a steady state, but instead constantly evolving and expanding, is inconsistent with the predictions of the steady-state theory. Overall, the big bang theory has accumulated a more substantial and robust body of scientific evidence in its favor compared to the steady-state theory.