Wikiversity hosts an archive of this project at PlanetPhysics The main PlanetPhysics.org focus was on both original research and encyclopedic entries; with over 3,400 physics and mathematics concepts edited in LaTeX and rendered in HTML, the PlanetPhysics Encyclopedia is at present the largest Physics encyclopedia written in LaTeX, containing both introductory as well as advanced level presentations.

In addition, the PlanetPhysics.org new websites also included extensive graphics illustrations of physics experiments, and also forum discussions.

PlanetPhysics implemented several specific content creation systems based on the Noosphere versions 1.0/1.5, Planetary (powered by Drupal), and MediaWiki currently being updated to allow peer-to-peer review, as well as preprints and encyclopedic contributions.

Other users could, however, add corrections and discuss improvements that must be approved by the original author so that the resulting modifications of the article, if any, were always made by the owner.

When there are long lasting (>30 days) unresolved necessary corrections, either the ownership or the entry could be removed by the web site administration.