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Q&A How would an alien civilization realistically monitor earth?

If a Kardashev Type III alien civilization wanted to monitor the earth (and its inhabitants' progress) via a satellite/orbiting object, how would they realistically transmit data from this object? ...

6 answers  ·  posted 6y ago by Oli Fog‭  ·  last activity 6y ago by Oli Fog‭

Question aliens orbital-mechanics data-storage