Question

what would happen if someday the sun does not rise

Answer 1

Life will come to a halt and there will be dark all around .........

Answer 2

Well your question should be what would happen if earth stopped rotating cozz sun doesn't rise or set. It's the earth that is rotating Well the earth would become very cold ( the side facing away from the sun) and the other side very hot. All forms of life would end within a short span of time.