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akurtzhs | 4 years ago

The sun won't give out until much longer, but life as we know it has far less than that.

https://en.wikipedia.org/wiki/Timeline_of_the_far_future#Ear...

Look at 500–600 million years. The sun's increasing luminosity means rising temperatures and falling CO2, which means no plant life at some point. The high estimate for plant and animal life is 1.2 billion years.

The sun swells to a red giant around 5 billion, swallows the Earth around 7.5, and shrinks to a white dwarf around 8.

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raflemakt|4 years ago

I'm not convinced that the Sun's expansion will be the demise of intelligent life on this planet. If there is a civilization of intelligent beings here ten million years in the future, let alone 100 or 1000, I'm tempted to think it would be trivial for them to A) Move the Earth farther out, or maybe better B) Change the composition of the sun to prolong its life (i.e. remove helium and other heavier elements with... the Sun's own energy).