Will the increasing scale factor of the universe cause the Sun to get larger over time?
A) Yes, because the scale factor will change the rate of fusion in the Sun's core.
B) Yes, because the atoms within the Sun will all expand individually.
C) No, because Earth is at center of the universe's expansion.
D) Yes, because the expansion of the universe will directly cause the Sun to expand.
E) No, because the Sun's self-gravity locally dominates over the expansion of the universe.

Question

Quizplus · Accepted Answer

The expansion of the universe affects large-scale structures, but local systems like the Sun are bound by gravity, which dominates over cosmic expansion.

Will the Increasing Scale Factor of the Universe Cause the Sun