DICTIONARY LOOKUP
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Jewel of Our Solar System
Adorned with thousands of beautiful ringlets, Saturn is unique among the planets. All four gas giant planets have rings -- made of chunks of ice and rock -- but none are as spectacular or as complicated as Saturn's. Like the other gas giants, Saturn is mostly a massive ball of hydrogen and helium.

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Watt

A unit of power, equivalent to one joule of energy per second.

wavelength

The distance between successive crests or troughs in a wave.

weathering

The chemical and physical alteration of materials exposed to the environment on or near the surface of a planetary body.

 
Can't find it? Don't understand it? Ask us.
Q
Watt

A unit of power, equivalent to one joule of energy per second.

wavelength

The distance between successive crests or troughs in a wave.

weathering

The chemical and physical alteration of materials exposed to the environment on or near the surface of a planetary body.