ScienceWorld, also known as Eric Weisstein's World of Science, is a Web site that opened to the general public in January 2002. As of November 2007, ScienceWorld includes more than 4,000 entries in fields of science including astronomy

Astronomy

Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

, chemistry

Chemistry

Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....

, physics

Physics

Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

, as well as biographies of many scientists. It is administrated by Eric Weisstein of Wolfram Research, Inc., who is the chief encyclopedist assigned to the project.

Weisstein is also the editor of MathWorld

MathWorld

MathWorld is an online mathematics reference work, created and largely written by Eric W. Weisstein. It is sponsored by and licensed to Wolfram Research, Inc. and was partially funded by the National Science Foundation's National Science Digital Library grant to the University of Illinois at...

, one of the most well known sources of information on mathematics on the Web

World Wide Web

The World Wide Web is a system of interlinked hypertext documents accessed via the Internet...

. ScienceWorld is an attempt by the same organization to do the same for science.

Although ScienceWorld is not an open-source project, there are significant contributions from well-informed volunteers.