"Formation of Solar Systems: Extracts from a Major Manuscript of 1924–1925. November 1925. And Debates on the Cause of the Cosmos" is a unique work by the eminent Russian scientist and pioneer of astronautics, Konstantin Eduardovich Tsiolkovsky. In this monograph, the author shares his reflections on the origins, structure, and evolution of solar systems, as well as on the philosophical questions surrounding the universe—topics that remain profoundly relevant today. Known for his bold predictions and groundbreaking discoveries, Tsiolkovsky draws readers into the worlds of astronomy and cosmology with accessible language and captivating metaphors. He explores timeless questions: How did the planets come into being? What drives the stars? What laws govern celestial bodies? These questions continue to resonate in the modern era, making this book appealing to a broad audience. This volume will particularly enchant those interested in astronomy, physics, space exploration, and philosophy. It is suitable for high school students, undergraduates, and anyone eager to deepen their understanding of the cosmos and humanity’s place within it. Science fiction enthusiasts and curious readers alike will find in these pages a wealth of ideas and concepts that inspire further reflection and discovery. The themes discussed in "Formation of Solar Systems" extend beyond scientific explanations to include philosophical musings on humanity’s role in the vast universe. Tsiolkovsky ponders questions about the meaning of life and how mankind can develop in harmony with the surrounding world. His reflections on the causes and structure of the cosmos provoke contemplation about what we know—and what remains to be uncovered. Tsiolkovsky’s writing style is characterized by depth of thought and poetic expression. He skillfully combines scientific facts with philosophical insights, making the reading both enlightening and aesthetically pleasing. This blend of science and philosophy makes his works unique in Russian literature and science. Among his other notable publications are "Research of the World’s Space by Rocket Devices" and "Space Travel," which also explore themes related to the universe and humanity’s future. "Formation of Solar Systems" is more than just a scientific treatise; it is a philosophical odyssey inviting readers to reflect on the most fundamental question—our place in the infinite universe. This book deserves attention not only from scientists and students but from all who seek to understand the nature of the world around them and their role within it. Reading this monograph can be the beginning of an exciting journey into astronomy and philosophy, transforming your perception of the cosmos and life itself. If you are interested in books about space, astronomy, philosophy, or science fiction, "Formation of Solar Systems" will be a true discovery. Don’t miss the chance to engage with the thoughts of one of the greatest minds of the 20th century and to explore new horizons in understanding the universe.