Realistically speaking, any of the major changes that happen near the end of a star’s life will make their planets uninhabitable on a time scale that seems pretty long from a human perspective. Imagine the last 100 years of climate change, but it just keeps getting worse at the same pace for a million years. By the time a star swells into a giant or explodes in a supernova, there won’t be anyone around to notice.
Why is a bright future assumed?
Sun eventually goes supernova.
It doesn’t. It’s not massive enough. It turns into a red giant, then collapses into a white dwarf and eventually fusion basically stops.
Yeah but in the process it’ll scour the surface off the earth so it’s not all bad news
Alternatively, if we wait long enough we always have the heat death of the universe to look forward to.
That’s not bright at all. That’s the darkest thing.
Very true.
Not before ballooning up and frying the Earth.
Yeah that’s totally not a worse death.
Realistically speaking, any of the major changes that happen near the end of a star’s life will make their planets uninhabitable on a time scale that seems pretty long from a human perspective. Imagine the last 100 years of climate change, but it just keeps getting worse at the same pace for a million years. By the time a star swells into a giant or explodes in a supernova, there won’t be anyone around to notice.
Thermonuclear reactions are very bright