The American Astronomical Society (AAS), established 1899, is a major professional organization in North America for astronomers and other scientists and individuals interested in astronomy and astronomy research. The...

This radio broadcast discusses how scientists' views of global warming have changed since the subject first emerged some 20 years ago. Topics include the nature of the warming process, once thought to be a gradual...

Arbor Day was first observed in 1872, and the Arbor Day Foundation was founded in 1972 in Nebraska. The Arbor Day website contains a trove of information for visitors to peruse, make plans around, and learn from. The...

Part of MIT's innovative OpenCourseWare Project, that provides materials from MIT classes to the public on the web, this site provides models for a design studio for housing, with a significant topic being compensating...

This radio broadcast discusses the renewed interest among space scientists in studying asteroids. Once disdained as uninteresting, asteriods are now considered to represent pristine material, essentially unchanged since...