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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 habitabl
by ianburrell 1y ago
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.
- Andrew_nenakhov 1y agoWhat gives you an impression that I am confusing these two things? Becoming a red giant is a long process and increased luminosity and radius are parts of this process.