Academic Earth provides videos of lectures by top scholars in "Subjects" that range from Astronomy to Entrepreneurship to Religion, from "Universities" as celebrated as MIT, Berkeley, Harvard, and Stanford. Visitors...

This site from Paper Plate Education provides an activity using only a globe and plastic cup to determine the position on the earth where the sun appears directly overhead. Plotting this point on several days throughout...

Students measure sunspot speeds and shapes across the solar disk to determine whether the spots are on the Sun or are planets revolving around it (Galileo's dilemma). Includes links to hands-on demonstration of concepts.

Ricky Leon Murphy decided to create this website when he was working towards a master�s degree in astronomy, and he still keeps it updated regularly, along with the assistance of his wife, Chanthirar. The site has been...

The Exploratorium in San Francisco has offered up this rather fun and interesting activity which gives interested parties the information to build their own scale model of the solar system. Visitors can start by filling...