Zoom Astronomy
Zoom Astronomy is a comprehensive on-line hypertext book about astronomy. It is designed for students of all ages and levels of comprehension. It was created with a simple structure that allows the reader to start at a basic level for each topic, and progress to more advanced information when and if it is desired.

Readers can follow their particular interests without getting lost in the structure, since the table of contents remains on the screen. Going off on tangents or going back to look up a term doesn't leave you stranded; you can easily return to where you were.

Zoom Astronomy covers the solar system, planets, moon, the Sun, asteroids, comets, stars, galaxies, and more. There is an illustrated astronomy dictionary and many classroom activities.
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