The Essential Guide to Astronomy
Eliot Herman is a professor at the University of Arizona.
Lunar Eclipses
By: eherman February 3, 2018
Meteors and Comets and Asteroids
By: eherman December 15, 2017
Planets
By: eherman May 11, 2016
Astronomy Pictures: Sky & Telescope's Online Gallery
By: eherman January 6, 2016
Aurora & Atmospheric
By: eherman November 15, 2015
Sun & Moon
By: eherman November 12, 2015