What is the next stage in the sun's life cycle?

Question

What is the next stage in the sun's life cycle?

Answer 1

It will expand and turn into red giant. Its a way off though

Answer 2

It will expand into a red giant about 4 to 5 billion years from now.

Answer 3

red giant

Answer 4

Red giant phase. Begins in about 3- to 3.5-billion years.