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ASTRONOMY

the science that deals with the material universe beyond the earth's atmosphere

FEATURED PAGE

Johannes Kepler
Johannes Kepler
developer of three laws of planetary motion

CONTENTS

Individual Biography, A-Z
BIOGRAPHY, A-Z

INSTRUMENTS

Practical and Spherical Astronomy
PRACTICAL AND SPHERICAL ASTRONOMY

The Solar System
THE SOLAR SYSTEM

Stars
STARS

Sources and Links

The Robinson Library >> Science