The book presents in chronological order, the lives and works of 28 scientists who have made significant contributions to the growth of astronomy. The introduction presents some glimpses of the history of astronimt. This section also highlights the most prominent contributions of the scientists included in the book. The book showcases all major event in astronomy. Some of the common concepts and terms have also been escribed. The book includes some useful infromation such as astronomical constants, the nearest and brightest stars, the names of the constellations and the planets and principal satellites for ready reference.