The default is the intermediate level. Most pages have an extensive navigation menu at the bottom. Some sections do not allow users to navigate without the browser's back button. The Windows to the Universe Web site offers information and graphics about Earth and space sciences. Users will find scientific, artistic, historical, and cultural information.
Viewers can also read the table of contents.
The content of the site can be viewed at a beginner, intermediate, or advanced level. Users can choose among ten different subject areas or go straight to information on the planets. This format controls the use of hyperlinks so users follow the pattern of information without distraction. This project is funded by NASA, and includes kid and teacher sections, each with their own resources and activities. The site includes a large number of images, movies, and animations.