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SETI is perhaps the most highly interdisciplinary of sciences, encompassing the fields of cosmology, biology, philosophy, psychology, sociology, and technology. Since readers' questions touch on all these disciplines, past Ask Dr. SETI columns have been arranged into six chapters.
Navigation Note: Navigating the pulldowns below requires a JavaScript-enabled browser. If your browser does not support JavaScript, please click on the "Links" labels to the left of each Chapter.
Remember, he's not a real doctor (but rather, a Ph.D., the kind who has to work for a living!) For health questions, consult a competent medical professional.