The book is written on the basis of a course of lectures on the basics of space physics, which the author gave for a number of years to students of the Faculty of Physics of the North-Eastern Federal University (until 2010.). - Yakutsk State University . The book does not purport to be an exhaustive statement of the issues raised in it.. At the same time, it outlines the latest achievements of science in the field of astrophysics, as well as identifies unresolved problems that are on the agenda of today. A distinctive feature of this book in comparison with similar courses is that it, along with the traditional for astrophysics questions, lays out the foundations of such sections as “Heliosphere”, “Solar activity”, “Solar-terrestrial relations”, “Space rays” .. --