Question

Suppose we were to detect radio signals from an intelligent civilization in the Coma cluster of galaxies 3 x 108 light years away. If we sent a message to this civilization, how long will we have to wait for a reply

Answer 1

Approximately 3.789 light years, rounded up from 3.7886325633462.

Step-by-step explanation:

The Coma Cluster is a place without wired internet, so it would take the speed of light times 6.826732 to get you answer of 3.7886325633462.