Layout of the Cosmos: Difference between revisions

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==Universe==
==Universe==
Believed to be about 20 billion years old, the Universe encompasses all matter and energy of all forms. See [[Space Phenomenon: Big Bang]] for more on the theorized origin of the Universe.
Believed to be about 20 billion years old, the Universe encompasses all matter and energy of all forms. See [[Space_Phenomenon#Big_Bang|Space Phenomenon: Big Bang]] for more on the theorized origin of the Universe.


==Galaxy==
==Galaxy==
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==Planet==
==Planet==
Orbiting stars are planets. Planets vary widely in structure, size and composition. See [[General Information: Planet Structure]] and [[Planet Classes]] for more information.
Orbiting stars are planets. Planets vary widely in structure, size and composition. See [[Planet Structure]] and [[Planetary Classes]] for more information.


{{Disclaimer}}
{{Disclaimer}}
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