I read somewhere that the sun might expand a bit and become too hot for Earth in just 500 million years time, so it might be a shorter window than you’d think
The sun will get brighter in 500 to 600 million years to the extent that many plants won’t be able to survive due to disruption to the carbon cycle. Expansion comes later.
This is what I’ve heard, that basically if we were stomped back to single celled life today, evolution would not have time to bring back visible plants and animals before the earth became uninhabitable. So there’s no starting over. I admit it kind of depresses me.
I read somewhere that the sun might expand a bit and become too hot for Earth in just 500 million years time, so it might be a shorter window than you’d think
You’re missing a zero. The sun will expand into the red giant phase in about 5 billion years.
Not if humans get their hands on it.
Solar system warming
The sun will get brighter in 500 to 600 million years to the extent that many plants won’t be able to survive due to disruption to the carbon cycle. Expansion comes later.
This is what I’ve heard, that basically if we were stomped back to single celled life today, evolution would not have time to bring back visible plants and animals before the earth became uninhabitable. So there’s no starting over. I admit it kind of depresses me.