The Sun has enough hydrogen in its core to continue fusing hydrogen to helium for about another:
A)million years
B)five million years
C)five billion years
D)five trillion years
E)The Sun can continue to fuse hydrogen to helium indefinitely.

Question

Quizplus · Accepted Answer

The Sun has enough hydrogen in its core to continue fusing hydrogen to helium for about another five billion years, which is commonly referred to as the main sequence phase of its life cycle. After this period, the Sun will start fusing helium and will evolve into a red giant before eventually shedding its outer layers and becoming a white dwarf.

The Sun Has Enough Hydrogen in Its Core to Continue