NASA
Nasa: Eclipses
The periodicity and recurrance of eclipses is governed by the Saros cycle, a period of approximately 6,585.3 days (18 years 11 days 8 hours). It was known to the Chaldeans as a period when lunar eclipses seem to repeat themselves, but...
Cosmos 4 kids
Cosmos4 Kids: Systems: Eclipses
Find out about the differences between solar and lunar eclipses and what causes both events to occur.
Cornell University
Cornell University: Astronomy: Eclipses
This site from the Astronomy Department of Cornell University provides brief introduction to both solar and lunar eclipses. Links are provided for pictures and charts of the eclipses, and this is a good site to check out on the subject.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Eclipses, Transitos Y Oculta
This is a simple explanation about solar and lunar eclipses.
Other
Space weather.com
Want to know what the current weather conditions are in space? Find everything here you may want to know about the latest solar flares, sunspots, asteroids and more. Site also includes essential web links to quench any user's thirst for...
Other
Canal Kids: Ciencias (Science for Portuguese Speakers)
Colorful, engagingly written information about astronomy and biology for Portuguese-speaking English language learners. Both subjects are broken down into a broad array of related subtopics. The biology section is particularly helpful...