What will happen to us after a star explodes?
Nothing will happen if a star far far away from us explodes… you don’t even see the explosion until a long time after it has exploded because of the speed light travels. If OUR sun exploded it will destroy earth and anything near it. But hopefully our race will be far from earth on some other planet when this happens.
That depends on where the star is, on what would be in the way of the radiation, and what part of our DNA would be hit and altered. In 1987, a supernova ignited in the Large Magellanic Cloud. It blasted the Earth with neutrinos, but on average, nobody got hit by more than one. Also, if interstellar gas and dust are in the way, it is possible that the radiation is blocked or absorbed, creating a nebula. Finally, it depends what the mutation is. They can be both beneficial and harmful. Cancer is a mutation, for example, but so is resistance to bubonic plague.
