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And although our observable universe has an edge, the universe as a whole is infinite and has no edge. ... Many galaxies are so far away from the earth that the expansion of the universe causes them to recede from the earth at a speed faster than light.

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Answer: The universe as a whole is infinite and has no edge. Many galaxies are so far away from the earth that the expansion of the universe causes them to recede from the earth at a speed faster than light.

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