Humans are a product of evolution and natural selection. We evolved skin as a protection against UV radiation, but we also need some of the Sun’s radiation to support some metabolic processes. Also, our eyes work well with the light produced by our sun.
And in an indirect way, we evolved to eat certain plants that thrive on our Sun’s light. Animals that we eat also eat some of those same plants.
So what would happen to a person that evolved on a planet with a red sun? Maybe nothing. Maybe they’d be blind. Maybe they’d starve. Who can say for sure?
The short answer: it depends.
Humans are a product of evolution and natural selection. We evolved skin as a protection against UV radiation, but we also need some of the Sun’s radiation to support some metabolic processes. Also, our eyes work well with the light produced by our sun.
And in an indirect way, we evolved to eat certain plants that thrive on our Sun’s light. Animals that we eat also eat some of those same plants.
So what would happen to a person that evolved on a planet with a red sun? Maybe nothing. Maybe they’d be blind. Maybe they’d starve. Who can say for sure?