sadiemarie1918 sadiemarie1918

30-08-2018
Social Studies

contestada

If a technologically advanced civilization in a nearby star system transmitted messages intended for us, how long would it take for the messages to reach us?

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Shadowcats Shadowcats

12-09-2018

Depending on how far the source where the signal is coming from is, radio waves travel at the speed of light. If the civilization lives in a star system that is 20 light years away from us, the signal would take 20 light years to reach us.

(1 light year = 1 normal year but traveling or moving at the speed of light).

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