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Homeby Witness Moecki
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RE: A Few Existing Theories About Our Universe #1

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wilhb81 (76)in #steemstem • 6 years ago

This source might be useful: https://en.m.wikipedia.org/wiki/Andromeda–Milky_Way_collision

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6 years ago in #steemstem by wilhb81 (76)
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