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The top documents tagged [galaxies arent]
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galaxies arent
Defining the Universe A simple definition for the universe is: “all that is”. The universe is the sum of all energy, matter, space and time. But there’s.
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Galaxy
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Galaxies (And a bit about distances). This image shows galaxy M 100 in which the Hubble Space Telescope detected Cepheid variables.
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The Big Bang
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18 The Big Bang Where do we come from, where are we going?
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