Assuming that there were humans on Mars, how long would it take for a voice transmission from Earth to reach them? Would the times be different for other electronic forms of communication?

Transmissions from Mars to Earth and visa versa happen at the speed of light. However, Mars is sometimes near Earth and sometimes on the other side of the sun. Therefore, depending on where Mars is in relation to Earth in our orbit around the sun, transmission times change from 4 minutes to 24 minutes. If Mars is close to Earth in orbit around the sun it’s 4 minutes. If Mars is on the other side of the sun from Earth in our orbit, it’s about 24 minutes.

Author: Wayne Boyd

Wayne Edward Boyd was born in Morristown, New Jersey in 1953. He is a published author, former ISKCON sannyasi, and traveler, having lived on 3 continents and visited 37 countries. He presently lives in Amarillo, Texas working as a correctional officer and has interests in photography, political science and astronomy.

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