Periodically the planet Venus passes directly between Earth and the Sun, appearing as a small black dot on the Sun's disk. Since astronomers first became aware of them in 1631, these "transits of Venus" have fascinated...

The American Chemical Society discusses how chemists are celebrating Earth Day this year. Users can learn how to take part in the 2004 Unifying Event - Testing the pH of Rain Water. Kindergarten through twelfth graders...

This web site lists cohousing communities in the United States and abroad with links to their web sites. It also lists products, such as books and videos; services, including professional consulting; and other resources...

The 11th International Conference on the Applications of Density Functional Theory in Chemistry and Physics (DFT) scheduled Sept. 11-15 in Geneva will include plenary lectures, oral contributions, and posters "devoted to...

The Cooperative Institute for Meteorological Satellite Studies (CIMSS) at the University of Wisconsin - Madison presents their educational and outreach materials. On this site, visitors can find a number of helpful...