According to this Timeline of the Far Future [0], we only have 500-600 million years.
(warning, this is one of the most depressive pages on Wikipedia)
[0]: https://en.wikipedia.org/wiki/Timeline_of_the_far_future
According to this Timeline of the Far Future [0], we only have 500-600 million years.
(warning, this is one of the most depressive pages on Wikipedia)
[0]: https://en.wikipedia.org/wiki/Timeline_of_the_far_future
You confused two things. There is the Sun turning into red giant in 5 billion years consuming the Earth, and the Sun getting too bright for Earth to be habitable in 500 million years.