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This comprehensive text documents the fundamental theoretical developments in astrodynamics and space navigation that led to Man's ventures into space. It includes the essential elements of celestial mechanics, spacecraft trajectories, and space navigation, as well as the history of the underlying mathematical developments.

This book brings together some of the classic spiritual writings from the twentieth century's most inspirational authors. Arranged thematically, this collection is ideal for use in sermon preparation and as a spiritual primer for laity and clergy alike. The nearly twenty subject headings include such topics as "Alienation and Loneliness," "Holiness and Spirituality," "Justice and Kindness," "Purity of Heart," "Humility and Renunciation," "Spiritual Presence and Incarnation, " and "Worship, Gratitude, and Joy."