"Phil" wrote in message
...
Greetings to all ...

My wife and I got into a discussion last nite after looking at Mars
through the telescope. A question arised and we were wondering
if someone could answer it ...

If a radio signal travels at the speed of light (186,200 miles per
second), then how long would it take it to get to Mars - from Earth?

36,000,000 miles is a very long way for a radio signal to travel


Thanks in advance!

--
Phil

Simply divide the distance by the speed to get time. 36,000,000 miles /
186,200 miles/sec = 193 seconds, or a little over 3 minutes. This distance
is very small compared to the signals still being received from the Voyger
probes now beyond the edge of the solar system. And that is very small
compared to the radio signals being received through radiotelescopes from
objects billions of light-years away.

Hap Griffin