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How long does it take for the radio signal to reach earth from mars?

April 26, 2017earth mars radio REACH signal

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How long does it take for the radio signal to reach earth from mars?

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Currently it takes about 16.5 minutes for a radio signal to go from Earth to Mars and the same to get from Mars to Earth. That sure is a long wait when you are trying to get an instrument to respond to see if it is alive. That was the longest 33 minutes of my life.