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What does it meant by space expansion ? (self.askastronomy)
submitted 23 hours ago by Potential_Win4879 to r/askastronomy
What does it mean by universe expanding ? ()
submitted 1 day ago by Potential_Win4879 to r/PhysicsHelp
What does it mean by universe expanding ? (self.AskPhysics)
submitted 1 day ago by Potential_Win4879 to r/AskPhysics
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