When will earth be destroyed?

Even if Earth spends the rest of its eons escaping aliens, dodging space rocks, and avoiding nuclear apocalypse, the day when our own sun destroys us will come. Even if Earth spends the rest of its eons escaping aliens, dodging space rocks, and avoiding nuclear apocalypse, the day when our own sun destroys us will come. read more

If Earth is not destroyed by the expanding red giant Sun in 7.6 billion years and not ejected from its orbit by a stellar encounter, its ultimate fate will be that it collides with the black dwarf Sun due to the decay of its orbit via gravitational radiation, in 10 20 (100 quintillion) years. read more