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What would be the possible and definite effects of two galaxies colliding with each other? (Milky Way & Andromeda) Long-term and short-term effects are both important. I'd like to know becaus...
What would be the possible and definite effects of two galaxies colliding with each other? (Milky Way & Andromeda) Long-term and short-term effects are both important. I'd like to know becaus...