The Sun Will Destroy Earth Sooner Than You Might Think. Everything must end. There are plenty of ways Earth could go. It could smash into another planet, be swallowed by a black hole, or get pummelled to death by asteroids. There’s really no way to tell which doomsday scenario will be the cause of our planet’s demise. But one thing is for sure - even if Earth spends the rest of its eons escaping alien attacks, dodging space rocks, and avoiding a nuclear apocalypse, there will come a day when our own Sun will eventually destroy us.