Understandable cosmos. From quark to quasar.

"Understandable Universe: From Quark to Quasar" is a desktop encyclopedia that contains detailed explanations of terms and concepts used in modern astronomy and astrophysics, information about stars, planets, galaxies, and other celestial objects. What is the Universe made of? What is a black hole? How do stars shine? Russian astronomer and educator Vladimir Surdin has prepared answers to these and many other questions. The book is intended for schoolchildren, students, teachers, and journalists, and many of its articles will attract the attention of advanced astronomy enthusiasts and even professional scientists. Most of the data is up to date as of the beginning of 2023. 2nd edition, revised and expanded.