The greatest support for the Big Bang theory of cosmology came from the discovery of
A) the cosmic microwave background.
B) the cosmic neutrino background.
C) isotropy in the universe.
D) homogeneity in the universe.

Question

Quizplus · Accepted Answer

The discovery of the cosmic microwave background (CMB) radiation in 1965 by Arno Penzias and Robert Wilson provided strong evidence for the Big Bang theory. The CMB is the afterglow radiation from the hot, early universe, and its existence and properties are predictions of the Big Bang theory.

The Greatest Support for the Big Bang Theory of Cosmology