Which of the following hypothetical observations, if true, would disprove a prediction of the Big Bang theory? The discovery of
A) a galaxy with 30% helium abundance.
B) the temperature of the universe is only 2.73 K.
C) a galaxy with 10% helium abundance.
D) a galaxy moving toward us.
E) two galaxies, at the same distance, moving away with slightly different speeds.

Question

Quizplus · Accepted Answer

The Big Bang theory predicts the primordial abundance of helium in the universe to be around 25%, so if a galaxy with only 10% helium abundance is discovered, it would contradict this prediction and disprove the theory. The other options do not necessarily contradict the predictions of the Big Bang theory.

Which of the Following Hypothetical Observations, If True, Would Disprove