Dr. Busby is a both physician and a minister. As a physician, he received his medical doctor (M.D., cum laude) degree and Master of Science (M.Sc.) degree in biophysics from the University of Western Ontario in Canada. Post-graduate studies at The Ohio State University and the Lovelace Foundation led to his being certified as a specialist in Aerospace Medicine by the American Board of Preventive Medicine and elected a Fellow of the American College of Preventive Medicine. As a minister, Dr. Busby received his Master of Divinity (M.Div.) degree from the Chicago Theological Seminary and his Doctor of Ministry (D.Min.) and Doctor of Philosophy (Ph.D.) degrees from the Graduate Theological Foundation. His 67 publications include the first book on clinical problems from hazards of space operations and two books on spiritual healing.

His other published books are: We Can Help God Heal Us; Spirits Can Help God Heal Us; Space Clinical Medicine: A Prospective Look at Medical Problems from Hazards of Space Operations; Space Biomagnetics.