In its premature death throes our sun has ballooned from a yellow dwarf open_in_new into a red giant open_in_new , cooling while increasing in size and brightness. This expansion consumed Mercury and Venus and turned the previously populated Earth and Mars into blistered wastelands.
Jupiter open_in_new and its moons open_in_new will now sit in the habitable zone for several million years, until the sun collapses back in on itself and becomes a white dwarf open_in_new .