Supernova Era

Supernova Era (超新星纪元) is a science fiction novel by Liu Cixin. It portrays a luminous stellar explosion releasing powerful electromagnetic radiation and high-energy particles into the universe as far as the Solar System, eight light-years away. Around the world, the chromosomes in human cells are damaged by high-energy rays. Only children under thirteen can repair the damage, while other age groups have only about a year left to survive.