Secrets of auroras, which are surrounded by religious reverence among many peoples; millennial rhythms of solar activity, sometimes turning into a disaster for all living things; largely unclear to us the geological history of the Earth, inextricably linked with the mysteries of the origin and development of life on our planet, are the main themes of the book of the writer, geophysicist, journalist Alexander Alexandrovich Gangnus. Synthesizing the achievements of geology and biology, geophysics and genetics, the author comes to conclusions that are unexpected and unique in their own way...