[Sherman Logan]

An exploding sun causes the earth to become an ice ball?

How’s that work?

[GeronL]

I wrote that even if they survive the sun exploding in this underground bunker they wanted to build, with a dead sun the world would become an ice ball.

I know this might happen over eons, I’m just saying

[Oztrich Boy]

An exploding sun causes the earth to become an ice ball?

How’s that work?

When it explodes the core drops below the heat/density required to sustain fusion. Radiation pressure is the only thing preventing gravitational collapse to a dwarf little person star.

So you get a brief flash of heat, then a tiny star emitting little heat - forever.