The sun will explode on July 17th, 2067, at 9:02 AM EST. It is to be expected. It will happen without warning, other than this, and you will never know. I doubt you’ll remember this, but need my warning. You and your loved ones will die before the explosion is even visible. It won’t be billions of years, only a few. Say your goodbyes on that day, maybe even the day before. We cant have anyone going too soon. And one more thing, this is not an exact estimate, just a middle. It could happen 2 years later or earlier, no way of telling, just expectation. You will never see it coming.