The book contains documents on the development of research related to the study and use of Space, covering a period of exactly one century - from 1903 to 2003, and collected by the great Bulgarian scientist Acad. Dimitar Mishev. A specialist in the field of radio engineering and remote sensing of the Earth, he has been a direct participant in the entire development of Bulgarian space science since its inception in 1956. Included are his authentic notes and comments on hundreds of space events, scientific forums and meetings, including the flights of the two Bulgarian cosmonauts and the related scientific projects and impressive applied results. The book also contains documents and memories of world space events and personalities, of major Bulgarian projects - the "Bulgaria 1300" satellites, the "Phobos" missions, the "Fregat" complex, etc. Although left unfinished by the author, this unique encyclopedic handbook is a source of rich information about the development of space research in Bulgaria and can be interesting reading for both specialists and a wide range of readers.