The steady state theory was disproven in the 1960s.Group of answer choicesTrueFalse

The statement "The steady state theory was disproven in the 1960s" is True.

Explanation:

The steady state theory, which proposed that the universe is eternal and unchanging on a large scale, was largely challenged by the discovery of the cosmic microwave background radiation in 1965. This evidence supported the Big Bang theory, which posits that the universe has expanded from an initial state of high density and temperature. The findings from Arno Penzias and Robert Wilson, who discovered this radiation, provided critical support for the Big Bang model and led to the decline of the steady state theory.

In conclusion, the developments in cosmology during the 1960s effectively demonstrated shortcomings in the steady state theory, affirming that the universe is dynamic rather than static.