Daniel E. Barth, PhD
Assistant Professor of STEM Education
University of Arkansas, Fayetteville
Special Thanks to the Editors:
Anne Dalio, Fullbright College, University of Arkansas
Thomas A. Mangelsdorf, CV-Helios Worldwide Solar Observing Network, Association of Lunar and Planetary Observers
Unless otherwise credited, all photographs and illustrations are © 2018 by Daniel Barth. This text is licensed under Creative Commons.
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