I mean its a nice idea. But short of FTL/Wormholes there is never going to be a practical need to do this. If the sun goes supernova then perhaps it would happe

I mean its a nice idea. But short of FTL/Wormholes there is never going to be a practical need to do this. If the sun goes supernova then perhaps it would happen but even then we would spend centuries in space terraforming planets to make them liveable,