Outer Space
People think that space is a quiet, desolate, vacuum of emptiness. Between the stars and planets, there exists a vast realm of nothingness. However, space is very active. Traveling throughout the cosmos are a variety of signals broadcasting their presence to anyone that will listen. Many of these signals are stars, quasars, and other celestial phenomena. Yet some of these signals, perhaps many of them, are extra-terrestrial beings talking to each other. And possibly… us.
YouTube link: https://youtu.be/IYf-1rO7FMk?si=tuk2AvLFL9aErYVW