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PLUTO
This deep-frozen world of rock and ice was the last planet to be discovered--US astronomer Clyde To...
DK e-encyclopedia
Newton's apple
The English scientist Sir Isaac Newton (1642-1727) was the first person to understand the force of ...
The Hutchinson Children's Encyclopedia
SATURN
This giant planet has a magnificent system of shining rings circling its equator. Saturn is the sec...
DK e-encyclopedia
Global View of Saturn
A global view of Saturn and its rings, taken by one of the Voyager probes...
Corbis Picture Library
JUPITER
The biggest planet, Jupiter, is 11 times wider than Earth. It is made mainly of hydrogen and helium...
DK e-encyclopedia
JUPITER
The biggest planet, Jupiter, is 11 times wider than Earth. It is made mainly of hydrogen and helium...
DK e-encyclopedia
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