Communications Timeline http://www.cybersmartcurriculum.org/lesson_plans/68_23a.asp
PBS Teaching Technology http://www.pbs.org/teachersource/teachtech.htm
Berkeley: Doing Astrophysics Research with an Artificial Earth Orbiting Satellite, Sine Waves, The Electromagnetic Spectrum, Images of the Universe in Different Wavelengths, Satellite Communications, Satellite Dishes, Constellations and the Zodiac, Solar System Objects, Earthquakes, and More! http://cse.ssl.berkeley.edu/lessons/lessons_teacherdeveloped.html
MCREL Lesson Plans http://www.mcrel.org/lesson-plans/science/sciencelessons.asp
NASA: Imagine the Universe http://imagine.gsfc.nasa.gov/docs/teachers/lesson_plans.html