This volume is the second edition of Adventures in Celestial Mechanics published by Victor G. Szebehely in 1989 at the University of Texas Press. The subject of this edition is the same as the previous one which was to quote the earlier introduction “to study the motion of natural and artificial bodies in space.” The work is still intended as a textbook for a first course in orbital mechanics and spacecraft dynamics and we have attempted to produce a second edition that maintains the spirit of the first. This was also stated succinctly in the introduction of the first edition: “fundamental ideas will be emphasized and will not be cluttered up with details that are available in the immense literature of this field.”