What specific data rate range signifies the one-way travel time from Earth to Mars at opposition, the farthest distance?
Answer
Over 22 minutes
The time delay for radio signals between Earth and Mars is directly proportional to the distance separating the two planets. At opposition, when Mars is at its farthest point from Earth, the separation can exceed 400 million kilometers. Given that radio signals travel at the speed of light, the elapsed time for the signal to traverse this vast distance in one direction is substantial. The text specifies that this maximum one-way travel time can extend to over 22 minutes, contrasting sharply with the minimum travel time of about 3 minutes when the planets are at their closest approach.
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