What if there is an equal alien civilization also incapable of light speed travel but developed a telescope that could view planets like ours.
What if there is an equal alien civilization also incapable of light speed travel but developed a telescope that could view planets like ours.
For example if the Betelgeuze system had a planet, with a theoretical large telescope on that planet and looked back at earth. It would see life and civilizations from the 15th century a.d. (~500 light years distance)