Question

What happens to a star when it becomes a red giant?

Answer 1

Answer:
After a star becomes a red giant, what happens next depends on how massive the star is. If its mass is relatively small, gravity eventually leads to the star contracting to form a white dwarf. It fades and changes colour as it cools. The matter in a white dwarf is millions of times denser than the matter on Earth.

Answer 2

What specifically happens to the star depends entirely upon its size. If it's small for example it will contract into a white dwarf star.