In a billion years, the sun will start to run out of fuel and expand to become a red giant. Earth's oceans and atmosphere will be burned away, and Earth will likely be engulfed by the sun altogether. The sun will then shrink to a dim white dwarf, and all light and warmth in the solar system wil...

Source: [Phys.org](https://phys.org/news/2026-08-earth-habitable-sun-dies.html)

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