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Q&A Aliens to play a mischievous space-time practical joke on Earth

Premise Suppose an earth-like world in the near-future. Then aliens come and decide to play a mischievous trick on this world on an epic scale. The goal is to disrupt Earth's time by 18 minutes. S...

13 answers  ·  posted 6y ago by Arash Howaida‭  ·  last activity 5y ago by Arash Howaida‭

Question physics relativity astrophysics