This website discusses the Fermi Paradox, which is about the chances of life beyond Planet Earth. The first part estimates the possibility of existence of other intelligent civilization in our galaxy by solving the Drake...

Created solely by author Frank Potter, this site is a large collection that provides web links to physical science curriculum materials for grades K-16 which are categorized by grade level and subject. Some of these...

The International Solar-Terrestrial Physics Science Initiative (ISTP), a collaborative effort by NASA, the European Space Agency (ESA), and the Institute of Space and Astronautical Science (ISAS) of Japan, has recently...

Authored by Nick Strobel, these web pages give a brief history of the imporatant figures associated with shaping Astronomical thought into what it is today. It covers the work and discoveries of the ancient Greeks,...

Created by the Institute and Museum of the History of Science, the site features virtual exhibits and tours of the IMSS museum. Some of their main exhibits include Galileo's notebooks and a whole section on Leonardo de...