Ruina jeeeeeeeeeeeeeeeeeee, tapai scientist bhanera sign tis (sin 30, value half, meaning half minded) ko ma pugnu bho hola. Scientists have predicted the life of sun. I dont have source right now with me but u can always check it out from google. Maile kura gareko scientist haru ko ho, sin tis haru ko hoina hai. I request you to confirm again where u went in search of information.