Title. Also maybe more extreme, but how is the Mars Rover sending pictures to earth. I cannot grasp how this works over such a long distance.
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Radio waves, for all intents and purposes, travel infinitely in space. If you think getting signals from Mars is impressive, look into the Voyager probes. Voyager 1 is 14 billion miles away (150 times farther than Mars) and we still get signals.
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