Starting Guide

System Check
Ö Browser is 3.0 version or above
   (for best viewing of interactive features)

ÖFlash plug-in is installed
   (to view the animations and the full version of
   the Celestial Navigator)

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How to Navigate the Site

• Links are white, and if you have a browser that is version 4 or later, the underline disappears when you move your mouse over the link (links that you have visited are light yellow). If you have a browser that is version 4 or later, the glossary term links are not underlined at any time.



• Any links outside of this site (for example, to NASA), open in a new window so you don't have to worry about navigating back to this site (there is an exception, all glossary link to the glossary in a new window).
  
  
• Links to help and search are always located in the Celestial Navigator (left-hand column).



• The moving arrows always point to the next lesson or section. Here is an example:
  



• The index of lessons are always a click away; just click on lesson index in the Celestial Navigator.

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