Responding to me, Jacqui wrote:
If you have a faster-than-light spaceship, it's no problem at all, as the radiation and debris from the supernova can't travel outward faster than the speed of light. (That's assuming you know the supernova is coming, of course...)
Would make an 'interesting' story (of any SF flavour) (g).
Hey, it would be "interesting" to see this kind of science done right by any SF TV show *ever*. (Though, I must say, _Andromeda_ at least makes a decent attempt at it much of the time.)