I could not put this down! The sun is dimming and an international team is put together to find out why. Dr. Grace, former disgruntled brilliant researcher turned middle school science teacher, is brought on the team due to a long ago published controversial paper. He ends up going on a suicide mission into space to save humanity. Most of the science in this book was way beyond me but the story itself was so engaging that I kept going. Despite the impending apocalypse, it was even very funny ! Great beach read!