Stellvia of the Universe

In 2167 AD, a powerful electromagnetic shockwave devastates the world. It comes from a nearby star, Hydrus Beta, 20 light-years away, which has gone supernova. The series takes place 189 years later, in 2356 AD. Civilization has been rebuilt, and humanity has united to face the coming second shockwave from the supernova. Unlike the first, this second shockwave will carry a great deal of matter made up of the star's remnants.