What you talking 'bout. Stars expand over thier lifespan, so eventually when it gets so enormous that it becomes very hot here, then they will try to move the earth to a new orbit where it isn't so hot.

But what I don't get is that they can't all of sudden push us 1 million miles out, because that is a huge climate change, they'll have to move it so slightly every once in a LONG while, so they'll probably only move the orbit out a few thousand miles everytime.

I still think they should rethink the asteroid plan